45156131020 has 96 divisors (see below), whose sum is σ = 127321399296. Its totient is φ = 12991968000.

The previous prime is 45156130973. The next prime is 45156131029. The reversal of 45156131020 is 2013165154.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 45156131020.

It is not an unprimeable number, because it can be changed into a prime (45156131029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1107756 + ... + 1147795.

It is an arithmetic number, because the mean of its divisors is an integer number (1326264576).

Almost surely, 2^45156131020 is an apocalyptic number.

It is an amenable number.

45156131020 is an abundant number, since it is smaller than the sum of its proper divisors (82165268276).

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

45156131020 is a wasteful number, since it uses less digits than its factorization.

45156131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2255591 (or 2255589 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 45156131020 its reverse (2013165154), we get a palindrome (47169296174).

The spelling of 45156131020 in words is "forty-five billion, one hundred fifty-six million, one hundred thirty-one thousand, twenty".