45255153681 has 20 divisors (see below), whose sum is σ = 67622435584. Its totient is φ = 30161597400.

The previous prime is 45255153679. The next prime is 45255153703. The reversal of 45255153681 is 18635155254.

45255153681 is a `hidden beast` number, since 4 + 5 + 25 + 515 + 36 + 81 = 666.

It is not a de Polignac number, because 45255153681 - 2¹ = 45255153679 is a prime.

It is a super-2 number, since 2×45255153681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45255153641) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 217176 + ... + 371046.

Almost surely, 2^45255153681 is an apocalyptic number.

It is an amenable number.

45255153681 is a deficient number, since it is larger than the sum of its proper divisors (22367281903).

45255153681 is a wasteful number, since it uses less digits than its factorization.

45255153681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157514 (or 157505 counting only the distinct ones).

The product of its digits is 720000, while the sum is 45.

The spelling of 45255153681 in words is "forty-five billion, two hundred fifty-five million, one hundred fifty-three thousand, six hundred eighty-one".