616522427520 has 128 divisors (see below), whose sum is σ = 1965402895680. Its totient is φ = 164386099200.

The previous prime is 616522427489. The next prime is 616522427579. The reversal of 616522427520 is 25724225616.

It is a tau number, because it is divible by the number of its divisors (128).

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, 22913275 + ... + 22940165.

Almost surely, 2^616522427520 is an apocalyptic number.

616522427520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

616522427520 is an abundant number, since it is smaller than the sum of its proper divisors (1348880468160).

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

616522427520 is a wasteful number, since it uses less digits than its factorization.

616522427520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38854 (or 38842 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The spelling of 616522427520 in words is "six hundred sixteen billion, five hundred twenty-two million, four hundred twenty-seven thousand, five hundred twenty".