16131576078 has 24 divisors (see below), whose sum is σ = 35018854416. Its totient is φ = 5366868000.

The previous prime is 16131576067. The next prime is 16131576101. The reversal of 16131576078 is 87067513161.

16131576078 is a `hidden beast` number, since 1 + 6 + 1 + 3 + 1 + 576 + 0 + 78 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 850698 + ... + 869453.

It is an arithmetic number, because the mean of its divisors is an integer number (1459118934).

Almost surely, 2^16131576078 is an apocalyptic number.

16131576078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16131576078 is an abundant number, since it is smaller than the sum of its proper divisors (18887278338).

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

16131576078 is a wasteful number, since it uses less digits than its factorization.

16131576078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720680 (or 1720677 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 16131576078 in words is "sixteen billion, one hundred thirty-one million, five hundred seventy-six thousand, seventy-eight".