105501551165065 has 32 divisors (see below), whose sum is σ = 146271624073344. Its totient is φ = 72197030231040.

The previous prime is 105501551165051. The next prime is 105501551165081. The reversal of 105501551165065 is 560561155105501.

It is a happy number.

It is not a de Polignac number, because 105501551165065 - 2⁷ = 105501551164937 is a prime.

It is a super-2 number, since 2×105501551165065² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10244674 + ... + 17775163.

It is an arithmetic number, because the mean of its divisors is an integer number (4570988252292).

Almost surely, 2^{105501551165065} is an apocalyptic number.

It is an amenable number.

105501551165065 is a deficient number, since it is larger than the sum of its proper divisors (40770072908279).

105501551165065 is a wasteful number, since it uses less digits than its factorization.

105501551165065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28023897.

The product of its (nonzero) digits is 562500, while the sum is 46.

It can be divided in two parts, 10550155 and 1165065, that added together give a triangular number (11715220 = T₄₈₄₀).

The spelling of 105501551165065 in words is "one hundred five trillion, five hundred one billion, five hundred fifty-one million, one hundred sixty-five thousand, sixty-five".