45621103920 has 160 divisors (see below), whose sum is σ = 162306754560. Its totient is φ = 10383959040.

The previous prime is 45621103883. The next prime is 45621103981. The reversal of 45621103920 is 2930112654.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344710 + ... + 458330.

It is an arithmetic number, because the mean of its divisors is an integer number (1014417216).

Almost surely, 2^45621103920 is an apocalyptic number.

45621103920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45621103920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81153377280).

45621103920 is an abundant number, since it is smaller than the sum of its proper divisors (116685650640).

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

45621103920 is a wasteful number, since it uses less digits than its factorization.

45621103920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113883 (or 113877 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 45621103920 in words is "forty-five billion, six hundred twenty-one million, one hundred three thousand, nine hundred twenty".