45023215545 has 96 divisors (see below), whose sum is σ = 97705820160. Its totient is φ = 18632315520.

The previous prime is 45023215529. The next prime is 45023215571. The reversal of 45023215545 is 54551232054.

It is not a de Polignac number, because 45023215545 - 2⁴ = 45023215529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 800952 + ... + 855318.

It is an arithmetic number, because the mean of its divisors is an integer number (1017768960).

Almost surely, 2^45023215545 is an apocalyptic number.

45023215545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45023215545 is an abundant number, since it is smaller than the sum of its proper divisors (52682604615).

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

45023215545 is a wasteful number, since it uses less digits than its factorization.

45023215545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54635 (or 54632 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 45023215545 its reverse (54551232054), we get a palindrome (99574447599).

The spelling of 45023215545 in words is "forty-five billion, twenty-three million, two hundred fifteen thousand, five hundred forty-five".