1166501968 has 10 divisors (see below), whose sum is σ = 2260097594. Its totient is φ = 583250976.

The previous prime is 1166501933. The next prime is 1166501969. The reversal of 1166501968 is 8691056611.

It can be written as a sum of positive squares in only one way, i.e., 770173504 + 396328464 = 27752^2 + 19908^2 .

It is a super-3 number, since 3×1166501968³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166501969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36453171 + ... + 36453202.

Almost surely, 2^1166501968 is an apocalyptic number.

It is an amenable number.

1166501968 is a deficient number, since it is larger than the sum of its proper divisors (1093595626).

1166501968 is an equidigital number, since it uses as much as digits as its factorization.

1166501968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72906381 (or 72906375 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 1166501968 is about 34154.0915264921. The cubic root of 1166501968 is about 1052.6770593732.

The spelling of 1166501968 in words is "one billion, one hundred sixty-six million, five hundred one thousand, nine hundred sixty-eight".