1016661156 has 24 divisors (see below), whose sum is σ = 2711096640. Its totient is φ = 290474592.

The previous prime is 1016661143. The next prime is 1016661167. The reversal of 1016661156 is 6511666101.

It is a super-2 number, since 2×1016661156² = 2067199812238512672, which contains 22 as substring.

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, 6051471 + ... + 6051638.

It is an arithmetic number, because the mean of its divisors is an integer number (112962360).

Almost surely, 2^1016661156 is an apocalyptic number.

It is an amenable number.

1016661156 is an abundant number, since it is smaller than the sum of its proper divisors (1694435484).

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

1016661156 is a wasteful number, since it uses less digits than its factorization.

1016661156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12103123 (or 12103121 counting only the distinct ones).

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

The square root of 1016661156 is about 31885.1243685829. The cubic root of 1016661156 is about 1005.5231572390.

The spelling of 1016661156 in words is "one billion, sixteen million, six hundred sixty-one thousand, one hundred fifty-six".