16625943969 has 16 divisors (see below), whose sum is σ = 22789128960. Its totient is φ = 10773941760.

The previous prime is 16625943953. The next prime is 16625943979. The reversal of 16625943969 is 96934952661.

It is not a de Polignac number, because 16625943969 - 2⁴ = 16625943953 is a prime.

It is a super-2 number, since 2×16625943969² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16625943949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43249 + ... + 187409.

It is an arithmetic number, because the mean of its divisors is an integer number (1424320560).

Almost surely, 2^16625943969 is an apocalyptic number.

It is an amenable number.

16625943969 is a deficient number, since it is larger than the sum of its proper divisors (6163184991).

16625943969 is a wasteful number, since it uses less digits than its factorization.

16625943969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145240.

The product of its digits is 18895680, while the sum is 60.

The spelling of 16625943969 in words is "sixteen billion, six hundred twenty-five million, nine hundred forty-three thousand, nine hundred sixty-nine".