16291518136 has 8 divisors (see below), whose sum is σ = 30546596520. Its totient is φ = 8145759064.

The previous prime is 16291518119. The next prime is 16291518157. The reversal of 16291518136 is 63181519261.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 16291518092 and 16291518101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1018219876 + ... + 1018219891.

It is an arithmetic number, because the mean of its divisors is an integer number (3818324565).

Almost surely, 2^16291518136 is an apocalyptic number.

It is an amenable number.

16291518136 is a deficient number, since it is larger than the sum of its proper divisors (14255078384).

16291518136 is a wasteful number, since it uses less digits than its factorization.

16291518136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036439773 (or 2036439769 counting only the distinct ones).

The product of its digits is 77760, while the sum is 43.

The spelling of 16291518136 in words is "sixteen billion, two hundred ninety-one million, five hundred eighteen thousand, one hundred thirty-six".