15946900416 has 42 divisors (see below), whose sum is σ = 45708912392. Its totient is φ = 5315633280.

The previous prime is 15946900381. The next prime is 15946900429. The reversal of 15946900416 is 61400964951.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13842220 + ... + 13843371.

Almost surely, 2^15946900416 is an apocalyptic number.

15946900416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15946900416 is an abundant number, since it is smaller than the sum of its proper divisors (29762011976).

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

15946900416 is a wasteful number, since it uses less digits than its factorization.

15946900416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27685609 (or 27685596 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 15946900416 in words is "fifteen billion, nine hundred forty-six million, nine hundred thousand, four hundred sixteen".