113451666615 has 72 divisors (see below), whose sum is σ = 236643863040. Its totient is φ = 50075190144.

The previous prime is 113451666613. The next prime is 113451666623. The reversal of 113451666615 is 516666154311.

It is not a de Polignac number, because 113451666615 - 2¹ = 113451666613 is a prime.

It is a super-2 number, since 2×113451666615² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113451666613) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 823159 + ... + 951048.

It is an arithmetic number, because the mean of its divisors is an integer number (3286720320).

Almost surely, 2^113451666615 is an apocalyptic number.

113451666615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

113451666615 is an abundant number, since it is smaller than the sum of its proper divisors (123192196425).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113451666615 is a wasteful number, since it uses less digits than its factorization.

113451666615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774261 (or 1774251 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The spelling of 113451666615 in words is "one hundred thirteen billion, four hundred fifty-one million, six hundred sixty-six thousand, six hundred fifteen".