7081866156 has 48 divisors (see below), whose sum is σ = 16987649504. Its totient is φ = 2294562816.

The previous prime is 7081866139. The next prime is 7081866161. The reversal of 7081866156 is 6516681807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 477996 + ... + 492588.

Almost surely, 2^7081866156 is an apocalyptic number.

It is an amenable number.

7081866156 is an abundant number, since it is smaller than the sum of its proper divisors (9905783348).

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

7081866156 is a wasteful number, since it uses less digits than its factorization.

7081866156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15730 (or 15728 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 7081866156 is about 84153.8243694248. The cubic root of 7081866156 is about 1920.3596472547.

The spelling of 7081866156 in words is "seven billion, eighty-one million, eight hundred sixty-six thousand, one hundred fifty-six".