12501700161 has 32 divisors (see below), whose sum is σ = 18263040000. Its totient is φ = 7576607808.

The previous prime is 12501700153. The next prime is 12501700207. The reversal of 12501700161 is 16100710521.

It is not a de Polignac number, because 12501700161 - 2³ = 12501700153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12501700961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 246240 + ... + 292638.

It is an arithmetic number, because the mean of its divisors is an integer number (570720000).

Almost surely, 2^12501700161 is an apocalyptic number.

It is an amenable number.

12501700161 is a deficient number, since it is larger than the sum of its proper divisors (5761339839).

12501700161 is a wasteful number, since it uses less digits than its factorization.

12501700161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46613.

The product of its (nonzero) digits is 420, while the sum is 24.

The spelling of 12501700161 in words is "twelve billion, five hundred one million, seven hundred thousand, one hundred sixty-one".