1167017261265 has 48 divisors (see below), whose sum is σ = 2080731744000. Its totient is φ = 604783812096.

The previous prime is 1167017261227. The next prime is 1167017261303. The reversal of 1167017261265 is 5621627107611.

1167017261265 is a `hidden beast` number, since 1 + 16 + 7 + 0 + 17 + 2 + 612 + 6 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (1167017261227) and next prime (1167017261303).

It is not a de Polignac number, because 1167017261265 - 2⁹ = 1167017260753 is a prime.

It is a super-2 number, since 2×1167017261265² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1167017261265.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1690840 + ... + 2278809.

It is an arithmetic number, because the mean of its divisors is an integer number (43348578000).

Almost surely, 2^{1167017261265} is an apocalyptic number.

1167017261265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1167017261265 is a deficient number, since it is larger than the sum of its proper divisors (913714482735).

1167017261265 is a wasteful number, since it uses less digits than its factorization.

1167017261265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969846 (or 3969843 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 1167017261265 in words is "one trillion, one hundred sixty-seven billion, seventeen million, two hundred sixty-one thousand, two hundred sixty-five".