16400290125125 has 16 divisors (see below), whose sum is σ = 20471126886912. Its totient is φ = 13117946965200.

The previous prime is 16400290125077. The next prime is 16400290125133. The reversal of 16400290125125 is 52152109200461.

It is not a de Polignac number, because 16400290125125 - 2³⁶ = 16331570648389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10704929 + ... + 12140678.

It is an arithmetic number, because the mean of its divisors is an integer number (1279445430432).

Almost surely, 2^{16400290125125} is an apocalyptic number.

It is an amenable number.

16400290125125 is a deficient number, since it is larger than the sum of its proper divisors (4070836761787).

16400290125125 is an equidigital number, since it uses as much as digits as its factorization.

16400290125125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22851365 (or 22851355 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

Adding to 16400290125125 its reverse (52152109200461), we get a palindrome (68552399325586).

The spelling of 16400290125125 in words is "sixteen trillion, four hundred billion, two hundred ninety million, one hundred twenty-five thousand, one hundred twenty-five".