115775220665651 has 16 divisors (see below), whose sum is σ = 119995260019200. Its totient is φ = 111631738659168.

The previous prime is 115775220665641. The next prime is 115775220665669. The reversal of 115775220665651 is 156566022577511.

It is a cyclic number.

It is not a de Polignac number, because 115775220665651 - 2⁴⁶ = 45406476487987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115775220665641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4743110 + ... + 15938868.

It is an arithmetic number, because the mean of its divisors is an integer number (7499703751200).

Almost surely, 2^{115775220665651} is an apocalyptic number.

115775220665651 is a deficient number, since it is larger than the sum of its proper divisors (4220039353549).

115775220665651 is a wasteful number, since it uses less digits than its factorization.

115775220665651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11199178.

The product of its (nonzero) digits is 26460000, while the sum is 59.

The spelling of 115775220665651 in words is "one hundred fifteen trillion, seven hundred seventy-five billion, two hundred twenty million, six hundred sixty-five thousand, six hundred fifty-one".