1166631770 has 16 divisors (see below), whose sum is σ = 2101920840. Its totient is φ = 466211904.

The previous prime is 1166631757. The next prime is 1166631811. The reversal of 1166631770 is 771366611.

1166631770 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 931653529 + 234978241 = 30523^2 + 15329^2 .

It is a super-2 number, since 2×1166631770² = 2722059373546665800, 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, 43877 + ... + 65256.

Almost surely, 2^1166631770 is an apocalyptic number.

1166631770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1166631770 is a deficient number, since it is larger than the sum of its proper divisors (935289070).

1166631770 is a wasteful number, since it uses less digits than its factorization.

1166631770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110209.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 1166631770 is about 34155.9917144855. The cubic root of 1166631770 is about 1052.7161033192.

The spelling of 1166631770 in words is "one billion, one hundred sixty-six million, six hundred thirty-one thousand, seven hundred seventy".