61704316817136 has 120 divisors (see below), whose sum is σ = 197782126530560. Its totient is φ = 17591727339648.

The previous prime is 61704316817113. The next prime is 61704316817147. The reversal of 61704316817136 is 63171861340716.

61704316817136 is a `hidden beast` number, since 6 + 1 + 7 + 0 + 431 + 6 + 8 + 171 + 36 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65639776 + ... + 66573183.

Almost surely, 2^{61704316817136} is an apocalyptic number.

It is an amenable number.

61704316817136 is an abundant number, since it is smaller than the sum of its proper divisors (136077809713424).

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

61704316817136 is a wasteful number, since it uses less digits than its factorization.

61704316817136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132213443 (or 132213434 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 61704316817136 in words is "sixty-one trillion, seven hundred four billion, three hundred sixteen million, eight hundred seventeen thousand, one hundred thirty-six".