45157008820 has 144 divisors (see below), whose sum is σ = 119890753920. Its totient is φ = 13984439040.

The previous prime is 45157008803. The next prime is 45157008823. The reversal of 45157008820 is 2880075154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45157008823) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2651091 + ... + 2668069.

It is an arithmetic number, because the mean of its divisors is an integer number (832574680).

Almost surely, 2^45157008820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45157008820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59945376960).

45157008820 is an abundant number, since it is smaller than the sum of its proper divisors (74733745100).

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

45157008820 is a wasteful number, since it uses less digits than its factorization.

45157008820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17174 (or 17161 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 40.

The spelling of 45157008820 in words is "forty-five billion, one hundred fifty-seven million, eight thousand, eight hundred twenty".