161001637626175 has 12 divisors (see below), whose sum is σ = 199643581992960. Its totient is φ = 128800309238720.

The previous prime is 161001637626173. The next prime is 161001637626209. The reversal of 161001637626175 is 571626736100161.

It is not a de Polignac number, because 161001637626175 - 2¹ = 161001637626173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161001637626173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21731470 + ... + 28182619.

It is an arithmetic number, because the mean of its divisors is an integer number (16636965166080).

Almost surely, 2^{161001637626175} is an apocalyptic number.

161001637626175 is a deficient number, since it is larger than the sum of its proper divisors (38641944366785).

161001637626175 is a wasteful number, since it uses less digits than its factorization.

161001637626175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50043122 (or 50043117 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 161001637626175 in words is "one hundred sixty-one trillion, one billion, six hundred thirty-seven million, six hundred twenty-six thousand, one hundred seventy-five".