16725623237 has 2 divisors, whose sum is σ = 16725623238. Its totient is φ = 16725623236.

The previous prime is 16725623231. The next prime is 16725623251. The reversal of 16725623237 is 73232652761.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16474749316 + 250873921 = 128354^2 + 15839^2 .

It is a cyclic number.

It is not a de Polignac number, because 16725623237 - 2⁸ = 16725622981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16725623231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8362811618 + 8362811619.

It is an arithmetic number, because the mean of its divisors is an integer number (8362811619).

Almost surely, 2^16725623237 is an apocalyptic number.

It is an amenable number.

16725623237 is a deficient number, since it is larger than the sum of its proper divisors (1).

16725623237 is an equidigital number, since it uses as much as digits as its factorization.

16725623237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 44.

The spelling of 16725623237 in words is "sixteen billion, seven hundred twenty-five million, six hundred twenty-three thousand, two hundred thirty-seven".