1166155896 has 16 divisors (see below), whose sum is σ = 2915389800. Its totient is φ = 388718624.

The previous prime is 1166155891. The next prime is 1166155897. The reversal of 1166155896 is 6985516611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166155891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24294891 + ... + 24294938.

Almost surely, 2^1166155896 is an apocalyptic number.

It is an amenable number.

1166155896 is an abundant number, since it is smaller than the sum of its proper divisors (1749233904).

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

1166155896 is a wasteful number, since it uses less digits than its factorization.

1166155896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48589838 (or 48589834 counting only the distinct ones).

The product of its digits is 388800, while the sum is 48.

The square root of 1166155896 is about 34149.0248177016. The cubic root of 1166155896 is about 1052.5729480793.

The spelling of 1166155896 in words is "one billion, one hundred sixty-six million, one hundred fifty-five thousand, eight hundred ninety-six".