15113100645 has 48 divisors (see below), whose sum is σ = 26321031360. Its totient is φ = 8021970432.

The previous prime is 15113100641. The next prime is 15113100661. The reversal of 15113100645 is 54600131151.

15113100645 is a `hidden beast` number, since 1 + 5 + 1 + 1 + 3 + 10 + 0 + 645 = 666.

It is not a de Polignac number, because 15113100645 - 2² = 15113100641 is a prime.

It is a super-2 number, since 2×15113100645² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15113100641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15468397 + ... + 15469373.

It is an arithmetic number, because the mean of its divisors is an integer number (548354820).

Almost surely, 2^15113100645 is an apocalyptic number.

15113100645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15113100645 is a deficient number, since it is larger than the sum of its proper divisors (11207930715).

15113100645 is a wasteful number, since it uses less digits than its factorization.

15113100645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274 (or 2271 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 15113100645 its reverse (54600131151), we get a palindrome (69713231796).

The spelling of 15113100645 in words is "fifteen billion, one hundred thirteen million, one hundred thousand, six hundred forty-five".