1166516616 has 32 divisors (see below), whose sum is σ = 2918628000. Its totient is φ = 388527360.

The previous prime is 1166516579. The next prime is 1166516621. The reversal of 1166516616 is 6166156611.

It is a super-2 number, since 2×1166516616² = 2721522030808182912, 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, 12160 + ... + 49808.

It is an arithmetic number, because the mean of its divisors is an integer number (91207125).

Almost surely, 2^1166516616 is an apocalyptic number.

It is an amenable number.

1166516616 is an abundant number, since it is smaller than the sum of its proper divisors (1752111384).

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

1166516616 is a wasteful number, since it uses less digits than its factorization.

1166516616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38949 (or 38945 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 1166516616 is about 34154.3059657198. The cubic root of 1166516616 is about 1052.6814655806.

The spelling of 1166516616 in words is "one billion, one hundred sixty-six million, five hundred sixteen thousand, six hundred sixteen".