1167665005 has 16 divisors (see below), whose sum is σ = 1513335600. Its totient is φ = 859788288.

The previous prime is 1167664997. The next prime is 1167665011. The reversal of 1167665005 is 5005667611.

It can be written as a sum of positive squares in 8 ways, for example, as 134235396 + 1033429609 = 11586^2 + 32147^2 .

It is a cyclic number.

It is not a de Polignac number, because 1167665005 - 2³ = 1167664997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3052 + ... + 48421.

It is an arithmetic number, because the mean of its divisors is an integer number (94583475).

Almost surely, 2^1167665005 is an apocalyptic number.

It is an amenable number.

1167665005 is a deficient number, since it is larger than the sum of its proper divisors (345670595).

1167665005 is a wasteful number, since it uses less digits than its factorization.

1167665005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51840.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 1167665005 is about 34171.1136049149. The cubic root of 1167665005 is about 1053.0267932326.

It can be divided in two parts, 116766 and 5005, that added together give a triangular number (121771 = T₄₉₃).

The spelling of 1167665005 in words is "one billion, one hundred sixty-seven million, six hundred sixty-five thousand, five".