16625919489 has 24 divisors (see below), whose sum is σ = 22494786432. Its totient is φ = 10922813280.

The previous prime is 16625919481. The next prime is 16625919547. The reversal of 16625919489 is 98491952661.

It is not a de Polignac number, because 16625919489 - 2³ = 16625919481 is a prime.

It is a super-2 number, since 2×16625919489² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16625919481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11180104 + ... + 11181590.

It is an arithmetic number, because the mean of its divisors is an integer number (937282768).

Almost surely, 2^16625919489 is an apocalyptic number.

It is an amenable number.

16625919489 is a deficient number, since it is larger than the sum of its proper divisors (5868866943).

16625919489 is an equidigital number, since it uses as much as digits as its factorization.

16625919489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2197 (or 2114 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 60.

The spelling of 16625919489 in words is "sixteen billion, six hundred twenty-five million, nine hundred nineteen thousand, four hundred eighty-nine".