1166192901 has 6 divisors (see below), whose sum is σ = 1684500870. Its totient is φ = 777461928.

The previous prime is 1166192869. The next prime is 1166192957. The reversal of 1166192901 is 1092916611.

1166192901 is a `hidden beast` number, since 1 + 16 + 619 + 29 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 892455876 + 273737025 = 29874^2 + 16545^2 .

It is not a de Polignac number, because 1166192901 - 2⁵ = 1166192869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166192701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64788486 + ... + 64788503.

It is an arithmetic number, because the mean of its divisors is an integer number (280750145).

Almost surely, 2^1166192901 is an apocalyptic number.

It is an amenable number.

1166192901 is a deficient number, since it is larger than the sum of its proper divisors (518307969).

1166192901 is a wasteful number, since it uses less digits than its factorization.

1166192901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129576995 (or 129576992 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 1166192901 is about 34149.5666297539. The cubic root of 1166192901 is about 1052.5840815392.

The spelling of 1166192901 in words is "one billion, one hundred sixty-six million, one hundred ninety-two thousand, nine hundred one".