1011666156 has 48 divisors (see below), whose sum is σ = 2425476480. Its totient is φ = 328066560.

The previous prime is 1011666143. The next prime is 1011666163. The reversal of 1011666156 is 6516661101.

It is a super-2 number, since 2×1011666156² = 2046936822391632672, which contains 22 as substring.

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, 61311 + ... + 76041.

It is an arithmetic number, because the mean of its divisors is an integer number (50530760).

Almost surely, 2^1011666156 is an apocalyptic number.

It is an amenable number.

1011666156 is an abundant number, since it is smaller than the sum of its proper divisors (1413810324).

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

1011666156 is a wasteful number, since it uses less digits than its factorization.

1011666156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14894 (or 14892 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 1011666156 is about 31806.6998602496. The cubic root of 1011666156 is about 1003.8736937875.

The spelling of 1011666156 in words is "one billion, eleven million, six hundred sixty-six thousand, one hundred fifty-six".