56121262416 has 30 divisors (see below), whose sum is σ = 157061588970. Its totient is φ = 18707087424.

The previous prime is 56121262361. The next prime is 56121262451. The reversal of 56121262416 is 61426212165.

56121262416 is a `hidden beast` number, since 5 + 6 + 1 + 2 + 12 + 624 + 16 = 666.

It can be written as a sum of positive squares in only one way, i.e., 41821886016 + 14299376400 = 204504^2 + 119580^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194865351 + ... + 194865638.

It is an arithmetic number, because the mean of its divisors is an integer number (5235386299).

Almost surely, 2^56121262416 is an apocalyptic number.

It is an amenable number.

56121262416 is an abundant number, since it is smaller than the sum of its proper divisors (100940326554).

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

56121262416 is a wasteful number, since it uses less digits than its factorization.

56121262416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389731003 (or 389730994 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

It can be divided in two parts, 5612 and 1262416, that added together give a triangular number (1268028 = T₁₅₉₂).

The spelling of 56121262416 in words is "fifty-six billion, one hundred twenty-one million, two hundred sixty-two thousand, four hundred sixteen".