616157624651 has 4 divisors (see below), whose sum is σ = 616159975704. Its totient is φ = 616155273600.

The previous prime is 616157624639. The next prime is 616157624659. The reversal of 616157624651 is 156426751616.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 616157624651 - 2³⁸ = 341279717707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 616157624651.

It is not an unprimeable number, because it can be changed into a prime (616157624659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724805 + ... + 1325766.

It is an arithmetic number, because the mean of its divisors is an integer number (154039993926).

Almost surely, 2^616157624651 is an apocalyptic number.

616157624651 is a deficient number, since it is larger than the sum of its proper divisors (2351053).

616157624651 is a wasteful number, since it uses less digits than its factorization.

616157624651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351052.

The product of its digits is 1814400, while the sum is 50.

The spelling of 616157624651 in words is "six hundred sixteen billion, one hundred fifty-seven million, six hundred twenty-four thousand, six hundred fifty-one".