1163772056 has 8 divisors (see below), whose sum is σ = 2182072620. Its totient is φ = 581886024.

The previous prime is 1163772041. The next prime is 1163772061. The reversal of 1163772056 is 6502773611.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72735746 + ... + 72735761.

Almost surely, 2^1163772056 is an apocalyptic number.

It is an amenable number.

1163772056 is a deficient number, since it is larger than the sum of its proper divisors (1018300564).

1163772056 is a wasteful number, since it uses less digits than its factorization.

1163772056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145471513 (or 145471509 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 1163772056 is about 34114.1034764216. The cubic root of 1163772056 is about 1051.8552403859.

The spelling of 1163772056 in words is "one billion, one hundred sixty-three million, seven hundred seventy-two thousand, fifty-six".