616816525240 has 32 divisors (see below), whose sum is σ = 1389266555760. Its totient is φ = 246472499200.

The previous prime is 616816525201. The next prime is 616816525249. The reversal of 616816525240 is 42525618616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616816525249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7901641 + ... + 7979320.

Almost surely, 2^616816525240 is an apocalyptic number.

It is an amenable number.

616816525240 is an abundant number, since it is smaller than the sum of its proper divisors (772450030520).

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

616816525240 is a wasteful number, since it uses less digits than its factorization.

616816525240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15881943 (or 15881939 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 616816525240 in words is "six hundred sixteen billion, eight hundred sixteen million, five hundred twenty-five thousand, two hundred forty".