100161055647 has 12 divisors (see below), whose sum is σ = 144749918040. Its totient is φ = 66740419728.

The previous prime is 100161055637. The next prime is 100161055663. The reversal of 100161055647 is 746550161001.

It is a happy number.

100161055647 is a `hidden beast` number, since 1 + 0 + 0 + 1 + 6 + 1 + 0 + 5 + 5 + 647 = 666.

It is not a de Polignac number, because 100161055647 - 2²⁴ = 100144278431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100161055637) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2782572 + ... + 2818337.

It is an arithmetic number, because the mean of its divisors is an integer number (12062493170).

Almost surely, 2^100161055647 is an apocalyptic number.

100161055647 is a deficient number, since it is larger than the sum of its proper divisors (44588862393).

100161055647 is a wasteful number, since it uses less digits than its factorization.

100161055647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5602902 (or 5602899 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 100161055647 in words is "one hundred billion, one hundred sixty-one million, fifty-five thousand, six hundred forty-seven".