15872666958 has 16 divisors (see below), whose sum is σ = 35272593360. Its totient is φ = 5290888968.

The previous prime is 15872666941. The next prime is 15872666969. The reversal of 15872666958 is 85966627851.

It is a junction number, because it is equal to n+sod(n) for n = 15872666895 and 15872666904.

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, 146969085 + ... + 146969192.

It is an arithmetic number, because the mean of its divisors is an integer number (2204537085).

Almost surely, 2^15872666958 is an apocalyptic number.

15872666958 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

15872666958 is an abundant number, since it is smaller than the sum of its proper divisors (19399926402).

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

15872666958 is a wasteful number, since it uses less digits than its factorization.

15872666958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293938288 (or 293938282 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 63.

The spelling of 15872666958 in words is "fifteen billion, eight hundred seventy-two million, six hundred sixty-six thousand, nine hundred fifty-eight".