1862161056 has 192 divisors, whose sum is σ = 6340239360. Its totient is φ = 520646400.

The previous prime is 1862161051. The next prime is 1862161057. The reversal of 1862161056 is 6501612681.

1862161056 is a `hidden beast` number, since 18 + 6 + 21 + 610 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1862161056.

It is not an unprimeable number, because it can be changed into a prime (1862161051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280981 + ... + 287531.

It is an arithmetic number, because the mean of its divisors is an integer number (33022080).

Almost surely, 2^1862161056 is an apocalyptic number.

1862161056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1862161056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3170119680).

1862161056 is an abundant number, since it is smaller than the sum of its proper divisors (4478078304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1862161056 is a wasteful number, since it uses less digits than its factorization.

1862161056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6624 (or 6610 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1862161056 is about 43152.7641756586. The cubic root of 1862161056 is about 1230.2850499375.

The spelling of 1862161056 in words is "one billion, eight hundred sixty-two million, one hundred sixty-one thousand, fifty-six".