165115511105007 has 16 divisors (see below), whose sum is σ = 226783533473280. Its totient is φ = 106792245892800.

The previous prime is 165115511104961. The next prime is 165115511105053. The reversal of 165115511105007 is 700501115511561.

It is an interprime number because it is at equal distance from previous prime (165115511104961) and next prime (165115511105053).

It is a de Polignac number, because none of the positive numbers 2^k-165115511105007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165115511105707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3749705719 + ... + 3749749752.

It is an arithmetic number, because the mean of its divisors is an integer number (14173970842080).

Almost surely, 2^{165115511105007} is an apocalyptic number.

165115511105007 is a deficient number, since it is larger than the sum of its proper divisors (61668022368273).

165115511105007 is a wasteful number, since it uses less digits than its factorization.

165115511105007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7499455694.

The product of its (nonzero) digits is 26250, while the sum is 39.

Adding to 165115511105007 its reverse (700501115511561), we get a palindrome (865616626616568).

The spelling of 165115511105007 in words is "one hundred sixty-five trillion, one hundred fifteen billion, five hundred eleven million, one hundred five thousand, seven".