105061665656506 has 16 divisors (see below), whose sum is σ = 169856309824488. Its totient is φ = 48449624832000.

The previous prime is 105061665656503. The next prime is 105061665656527. The reversal of 105061665656506 is 605656566160501.

It can be written as a sum of positive squares in 4 ways, for example, as 12991403800881 + 92070261855625 = 3604359^2 + 9595325^2 .

It is a super-2 number, since 2×105061665656506² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105061665656503) 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, 1682247415 + ... + 1682309866.

Almost surely, 2^{105061665656506} is an apocalyptic number.

105061665656506 is a deficient number, since it is larger than the sum of its proper divisors (64794644167982).

105061665656506 is a wasteful number, since it uses less digits than its factorization.

105061665656506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3364558497.

The product of its (nonzero) digits is 29160000, while the sum is 58.

The spelling of 105061665656506 in words is "one hundred five trillion, sixty-one billion, six hundred sixty-five million, six hundred fifty-six thousand, five hundred six".