16158236980 has 24 divisors (see below), whose sum is σ = 33934847688. Its totient is φ = 6462809088.

The previous prime is 16158236977. The next prime is 16158237031. The reversal of 16158236980 is 8963285161.

It can be written as a sum of positive squares in 4 ways, for example, as 1025792784 + 15132444196 = 32028^2 + 123014^2 .

It is a super-2 number, since 2×16158236980² (a number of 21 digits) contains 22 as substring.

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, 373432 + ... + 414448.

It is an arithmetic number, because the mean of its divisors is an integer number (1413951987).

Almost surely, 2^16158236980 is an apocalyptic number.

16158236980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16158236980 is an abundant number, since it is smaller than the sum of its proper divisors (17776610708).

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

16158236980 is a wasteful number, since it uses less digits than its factorization.

16158236980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60723 (or 60721 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 16158236980 in words is "sixteen billion, one hundred fifty-eight million, two hundred thirty-six thousand, nine hundred eighty".