1167638633567 has 4 divisors (see below), whose sum is σ = 1334444152656. Its totient is φ = 1000833114480.

The previous prime is 1167638633549. The next prime is 1167638633617. The reversal of 1167638633567 is 7653368367611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1167638633567 - 2²⁴ = 1167621856351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167638633167) 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, 83402759534 + ... + 83402759547.

It is an arithmetic number, because the mean of its divisors is an integer number (333611038164).

Almost surely, 2^{1167638633567} is an apocalyptic number.

1167638633567 is a deficient number, since it is larger than the sum of its proper divisors (166805519089).

1167638633567 is an equidigital number, since it uses as much as digits as its factorization.

1167638633567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166805519088.

The product of its digits is 68584320, while the sum is 62.

The spelling of 1167638633567 in words is "one trillion, one hundred sixty-seven billion, six hundred thirty-eight million, six hundred thirty-three thousand, five hundred sixty-seven".