7620181056 has 112 divisors (see below), whose sum is σ = 23174553600. Its totient is φ = 2452455936.

The previous prime is 7620181039. The next prime is 7620181057. The reversal of 7620181056 is 6501810267.

7620181056 is a `hidden beast` number, since 7 + 620 + 18 + 10 + 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 7620181056.

It is not an unprimeable number, because it can be changed into a prime (7620181057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25920 + ... + 126143.

Almost surely, 2^7620181056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7620181056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11587276800).

7620181056 is an abundant number, since it is smaller than the sum of its proper divisors (15554372544).

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

7620181056 is a wasteful number, since it uses less digits than its factorization.

7620181056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152113 (or 152097 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 7620181056 is about 87293.6484287374. The cubic root of 7620181056 is about 1967.8338646192.

The spelling of 7620181056 in words is "seven billion, six hundred twenty million, one hundred eighty-one thousand, fifty-six".