117766765605 has 16 divisors (see below), whose sum is σ = 189674688384. Its totient is φ = 62392987200.

The previous prime is 117766765541. The next prime is 117766765621. The reversal of 117766765605 is 506567667711.

It is not a de Polignac number, because 117766765605 - 2⁶ = 117766765541 is a prime.

It is a super-2 number, since 2×117766765605² (a number of 23 digits) contains 22 as substring.

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, 25994814 + ... + 25999343.

It is an arithmetic number, because the mean of its divisors is an integer number (11854668024).

Almost surely, 2^117766765605 is an apocalyptic number.

117766765605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117766765605 is a deficient number, since it is larger than the sum of its proper divisors (71907922779).

117766765605 is a wasteful number, since it uses less digits than its factorization.

117766765605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51994316.

The product of its (nonzero) digits is 11113200, while the sum is 57.

The spelling of 117766765605 in words is "one hundred seventeen billion, seven hundred sixty-six million, seven hundred sixty-five thousand, six hundred five".