16487243504 has 20 divisors (see below), whose sum is σ = 32328904776. Its totient is φ = 8144300352.

The previous prime is 16487243477. The next prime is 16487243533. The reversal of 16487243504 is 40534278461.

It is a happy number.

It is a super-3 number, since 3×16487243504³ (a number of 32 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 6206219 + ... + 6208874.

Almost surely, 2^16487243504 is an apocalyptic number.

It is an amenable number.

16487243504 is a deficient number, since it is larger than the sum of its proper divisors (15841661272).

16487243504 is a wasteful number, since it uses less digits than its factorization.

16487243504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12415184 (or 12415178 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 16487243504 in words is "sixteen billion, four hundred eighty-seven million, two hundred forty-three thousand, five hundred four".