16120765404 has 36 divisors (see below), whose sum is σ = 40753571040. Its totient is φ = 5373079680.

The previous prime is 16120765399. The next prime is 16120765429. The reversal of 16120765404 is 40456702161.

16120765404 is a `hidden beast` number, since 161 + 20 + 76 + 5 + 404 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 705844 + ... + 728324.

It is an arithmetic number, because the mean of its divisors is an integer number (1132043640).

Almost surely, 2^16120765404 is an apocalyptic number.

It is an amenable number.

16120765404 is an abundant number, since it is smaller than the sum of its proper divisors (24632805636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16120765404 is a wasteful number, since it uses less digits than its factorization.

16120765404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42410 (or 42405 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 16120765404 in words is "sixteen billion, one hundred twenty million, seven hundred sixty-five thousand, four hundred four".