2168517156 has 48 divisors (see below), whose sum is σ = 5452293504. Its totient is φ = 666844416.

The previous prime is 2168517107. The next prime is 2168517173. The reversal of 2168517156 is 6517158612.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375120 + ... + 380856.

It is an arithmetic number, because the mean of its divisors is an integer number (113589448).

Almost surely, 2^2168517156 is an apocalyptic number.

2168517156 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2168517156 is an abundant number, since it is smaller than the sum of its proper divisors (3283776348).

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

2168517156 is a wasteful number, since it uses less digits than its factorization.

2168517156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8180 (or 8178 counting only the distinct ones).

The product of its digits is 100800, while the sum is 42.

The square root of 2168517156 is about 46567.3400142203. The cubic root of 2168517156 is about 1294.3576279725.

The spelling of 2168517156 in words is "two billion, one hundred sixty-eight million, five hundred seventeen thousand, one hundred fifty-six".