45555012420 has 48 divisors (see below), whose sum is σ = 127858530240. Its totient is φ = 12119003776.

The previous prime is 45555012407. The next prime is 45555012449. The reversal of 45555012420 is 2421055554.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880887 + ... + 931166.

It is an arithmetic number, because the mean of its divisors is an integer number (2663719380).

Almost surely, 2^45555012420 is an apocalyptic number.

It is an amenable number.

45555012420 is an abundant number, since it is smaller than the sum of its proper divisors (82303517820).

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

45555012420 is a wasteful number, since it uses less digits than its factorization.

45555012420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812484 (or 1812482 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 33.

Adding to 45555012420 its reverse (2421055554), we get a palindrome (47976067974).

The spelling of 45555012420 in words is "forty-five billion, five hundred fifty-five million, twelve thousand, four hundred twenty".