1165501661167 has 8 divisors (see below), whose sum is σ = 1227529660400. Its totient is φ = 1103542242624.

The previous prime is 1165501661161. The next prime is 1165501661249. The reversal of 1165501661167 is 7611661055611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1165501661167 - 2²⁷ = 1165367443439 is a prime.

It is a super-3 number, since 3×1165501661167³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165501661161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17110278 + ... + 17178259.

It is an arithmetic number, because the mean of its divisors is an integer number (153441207550).

Almost surely, 2^{1165501661167} is an apocalyptic number.

1165501661167 is a deficient number, since it is larger than the sum of its proper divisors (62027999233).

1165501661167 is a wasteful number, since it uses less digits than its factorization.

1165501661167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34290345.

The product of its (nonzero) digits is 226800, while the sum is 46.

The spelling of 1165501661167 in words is "one trillion, one hundred sixty-five billion, five hundred one million, six hundred sixty-one thousand, one hundred sixty-seven".