56161275480 has 384 divisors, whose sum is σ = 203283924480. Its totient is φ = 13893949440.

The previous prime is 56161275473. The next prime is 56161275491. The reversal of 56161275480 is 8457216165.

56161275480 is a `hidden beast` number, since 5 + 6 + 161 + 2 + 7 + 5 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 11729647 + ... + 11734433.

It is an arithmetic number, because the mean of its divisors is an integer number (529385220).

Almost surely, 2^56161275480 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 56161275480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101641962240).

56161275480 is an abundant number, since it is smaller than the sum of its proper divisors (147122649000).

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

56161275480 is a wasteful number, since it uses less digits than its factorization.

56161275480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4901 (or 4885 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 56161275480 in words is "fifty-six billion, one hundred sixty-one million, two hundred seventy-five thousand, four hundred eighty".