45215021554 has 16 divisors (see below), whose sum is σ = 67931868960. Its totient is φ = 22571097120.

The previous prime is 45215021549. The next prime is 45215021587. The reversal of 45215021554 is 45512051254.

45215021554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3383017 + ... + 3396355.

It is an arithmetic number, because the mean of its divisors is an integer number (4245741810).

Almost surely, 2^45215021554 is an apocalyptic number.

45215021554 is a deficient number, since it is larger than the sum of its proper divisors (22716847406).

45215021554 is a wasteful number, since it uses less digits than its factorization.

45215021554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15945.

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 45215021554 in words is "forty-five billion, two hundred fifteen million, twenty-one thousand, five hundred fifty-four".