61700198616 has 96 divisors (see below), whose sum is σ = 202210763040. Its totient is φ = 16591647744.

The previous prime is 61700198603. The next prime is 61700198627. The reversal of 61700198616 is 61689100716.

61700198616 is a `hidden beast` number, since 6 + 17 + 0 + 0 + 19 + 8 + 616 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3592051 + ... + 3609186.

It is an arithmetic number, because the mean of its divisors is an integer number (2106362115).

Almost surely, 2^61700198616 is an apocalyptic number.

It is an amenable number.

61700198616 is an abundant number, since it is smaller than the sum of its proper divisors (140510564424).

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

61700198616 is a wasteful number, since it uses less digits than its factorization.

61700198616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7201273 (or 7201266 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The spelling of 61700198616 in words is "sixty-one billion, seven hundred million, one hundred ninety-eight thousand, six hundred sixteen".