1639660100796 has 72 divisors (see below), whose sum is σ = 4294184480768. Its totient is φ = 526970772000.

The previous prime is 1639660100753. The next prime is 1639660100831. The reversal of 1639660100796 is 6970010669361.

1639660100796 is a `hidden beast` number, since 1 + 6 + 396 + 60 + 100 + 7 + 96 = 666.

It is a super-2 number, since 2×1639660100796² (a number of 25 digits) contains 22 as substring.

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, 2408320 + ... + 3013191.

Almost surely, 2^{1639660100796} is an apocalyptic number.

It is an amenable number.

1639660100796 is an abundant number, since it is smaller than the sum of its proper divisors (2654524379972).

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

1639660100796 is a wasteful number, since it uses less digits than its factorization.

1639660100796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5421823 (or 5421818 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The spelling of 1639660100796 in words is "one trillion, six hundred thirty-nine billion, six hundred sixty million, one hundred thousand, seven hundred ninety-six".