42656616625 has 16 divisors (see below), whose sum is σ = 60840524160. Its totient is φ = 29250250800.

The previous prime is 42656616599. The next prime is 42656616641. The reversal of 42656616625 is 52661665624.

It is not a de Polignac number, because 42656616625 - 2⁵ = 42656616593 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24374335 + ... + 24376084.

It is an arithmetic number, because the mean of its divisors is an integer number (3802532760).

Almost surely, 2^42656616625 is an apocalyptic number.

It is an amenable number.

42656616625 is a deficient number, since it is larger than the sum of its proper divisors (18183907535).

42656616625 is an equidigital number, since it uses as much as digits as its factorization.

42656616625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48750441 (or 48750431 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 49.

The spelling of 42656616625 in words is "forty-two billion, six hundred fifty-six million, six hundred sixteen thousand, six hundred twenty-five".