16625464623 has 16 divisors (see below), whose sum is σ = 24632985600. Its totient is φ = 11082442680.

The previous prime is 16625464613. The next prime is 16625464631. The reversal of 16625464623 is 32646452661.

It is a happy number.

16625464623 is a `hidden beast` number, since 1 + 6 + 62 + 546 + 46 + 2 + 3 = 666.

It is not a de Polignac number, because 16625464623 - 2⁵ = 16625464591 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16625464613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271108 + ... + 326726.

It is an arithmetic number, because the mean of its divisors is an integer number (1539561600).

Almost surely, 2^16625464623 is an apocalyptic number.

16625464623 is a deficient number, since it is larger than the sum of its proper divisors (8007520977).

16625464623 is a wasteful number, since it uses less digits than its factorization.

16625464623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66699 (or 66693 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The spelling of 16625464623 in words is "sixteen billion, six hundred twenty-five million, four hundred sixty-four thousand, six hundred twenty-three".