616602331980 has 36 divisors (see below), whose sum is σ = 1870360407552. Its totient is φ = 164427288480.

The previous prime is 616602331973. The next prime is 616602331981. The reversal of 616602331980 is 89133206616.

616602331980 is a `hidden beast` number, since 6 + 1 + 6 + 602 + 3 + 31 + 9 + 8 + 0 = 666.

616602331980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (616602331981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1712784076 + ... + 1712784435.

Almost surely, 2^616602331980 is an apocalyptic number.

616602331980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

616602331980 is an abundant number, since it is smaller than the sum of its proper divisors (1253758075572).

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

616602331980 is a wasteful number, since it uses less digits than its factorization.

616602331980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425568526 (or 3425568521 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 616602331980 in words is "six hundred sixteen billion, six hundred two million, three hundred thirty-one thousand, nine hundred eighty".