100720164423744 has 84 divisors (see below), whose sum is σ = 288697554706860. Its totient is φ = 33573226613760.

The previous prime is 100720164423737. The next prime is 100720164423811. The reversal of 100720164423744 is 447324461027001.

100720164423744 is a `hidden beast` number, since 1 + 0 + 0 + 7 + 20 + 164 + 423 + 7 + 44 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 70332375873600 + 30387788550144 = 8386440^2 + 5512512^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100720164423744.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215783574 + ... + 216249834.

Almost surely, 2^{100720164423744} is an apocalyptic number.

It is an amenable number.

100720164423744 is an abundant number, since it is smaller than the sum of its proper divisors (187977390283116).

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

100720164423744 is a wasteful number, since it uses less digits than its factorization.

100720164423744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841308 (or 841295 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 45.

The spelling of 100720164423744 in words is "one hundred trillion, seven hundred twenty billion, one hundred sixty-four million, four hundred twenty-three thousand, seven hundred forty-four".