56716151225646 has 64 divisors (see below), whose sum is σ = 124770620249856. Its totient is φ = 17186215233440.

The previous prime is 56716151225621. The next prime is 56716151225647. The reversal of 56716151225646 is 64652215161765.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56716151225647) 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, 351087625 + ... + 351249131.

It is an arithmetic number, because the mean of its divisors is an integer number (1949540941404).

Almost surely, 2^{56716151225646} is an apocalyptic number.

56716151225646 is an abundant number, since it is smaller than the sum of its proper divisors (68054469024210).

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

56716151225646 is a wasteful number, since it uses less digits than its factorization.

56716151225646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205518 (or 205496 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 57.

The spelling of 56716151225646 in words is "fifty-six trillion, seven hundred sixteen billion, one hundred fifty-one million, two hundred twenty-five thousand, six hundred forty-six".