16519225984 has 32 divisors (see below), whose sum is σ = 32932821600. Its totient is φ = 8253733632.

The previous prime is 16519225973. The next prime is 16519225997. The reversal of 16519225984 is 48952291561.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×16519225984² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137437 + ... + 227875.

It is an arithmetic number, because the mean of its divisors is an integer number (1029150675).

Almost surely, 2^16519225984 is an apocalyptic number.

It is an amenable number.

16519225984 is a deficient number, since it is larger than the sum of its proper divisors (16413595616).

16519225984 is an equidigital number, since it uses as much as digits as its factorization.

16519225984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91880 (or 91868 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 52.

The spelling of 16519225984 in words is "sixteen billion, five hundred nineteen million, two hundred twenty-five thousand, nine hundred eighty-four".