1656151056 has 160 divisors (see below), whose sum is σ = 5455008000. Its totient is φ = 471260160.

The previous prime is 1656151051. The next prime is 1656151069. The reversal of 1656151056 is 6501516561.

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 1656151056.

It is not an unprimeable number, because it can be changed into a prime (1656151051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 848770 + ... + 850718.

It is an arithmetic number, because the mean of its divisors is an integer number (34093800).

Almost surely, 2^1656151056 is an apocalyptic number.

1656151056 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 1656151056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2727504000).

1656151056 is an abundant number, since it is smaller than the sum of its proper divisors (3798856944).

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

1656151056 is a wasteful number, since it uses less digits than its factorization.

1656151056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254 (or 2242 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 1656151056 is about 40695.8358557728. The cubic root of 1656151056 is about 1183.1323118337.

The spelling of 1656151056 in words is "one billion, six hundred fifty-six million, one hundred fifty-one thousand, fifty-six".