1163177320361 has 4 divisors (see below), whose sum is σ = 1329345508992. Its totient is φ = 997009131732.

The previous prime is 1163177320267. The next prime is 1163177320363. The reversal of 1163177320361 is 1630237713611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1163177320361 - 2²² = 1163173126057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1163177320363) 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, 83084094305 + ... + 83084094318.

It is an arithmetic number, because the mean of its divisors is an integer number (332336377248).

Almost surely, 2^{1163177320361} is an apocalyptic number.

It is an amenable number.

1163177320361 is a deficient number, since it is larger than the sum of its proper divisors (166168188631).

1163177320361 is an equidigital number, since it uses as much as digits as its factorization.

1163177320361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166168188630.

The product of its (nonzero) digits is 95256, while the sum is 41.

The spelling of 1163177320361 in words is "one trillion, one hundred sixty-three billion, one hundred seventy-seven million, three hundred twenty thousand, three hundred sixty-one".