16481432636 has 24 divisors (see below), whose sum is σ = 29319684240. Its totient is φ = 8105484672.

The previous prime is 16481432623. The next prime is 16481432641. The reversal of 16481432636 is 63623418461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78230 + ... + 197693.

It is an arithmetic number, because the mean of its divisors is an integer number (1221653510).

Almost surely, 2^16481432636 is an apocalyptic number.

It is an amenable number.

16481432636 is a deficient number, since it is larger than the sum of its proper divisors (12838251604).

16481432636 is a wasteful number, since it uses less digits than its factorization.

16481432636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276173 (or 276171 counting only the distinct ones).

The product of its digits is 497664, while the sum is 44.

The spelling of 16481432636 in words is "sixteen billion, four hundred eighty-one million, four hundred thirty-two thousand, six hundred thirty-six".