44985172656 has 160 divisors (see below), whose sum is σ = 123392102400. Its totient is φ = 14093367552.

The previous prime is 44985172619. The next prime is 44985172669. The reversal of 44985172656 is 65627158944.

It is a junction number, because it is equal to n+sod(n) for n = 44985172596 and 44985172605.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18233535 + ... + 18236001.

It is an arithmetic number, because the mean of its divisors is an integer number (771200640).

Almost surely, 2^44985172656 is an apocalyptic number.

44985172656 is a gapful number since it is divisible by the number (46) 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 44985172656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61696051200).

44985172656 is an abundant number, since it is smaller than the sum of its proper divisors (78406929744).

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

44985172656 is a wasteful number, since it uses less digits than its factorization.

44985172656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783 (or 2777 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 57.

The spelling of 44985172656 in words is "forty-four billion, nine hundred eighty-five million, one hundred seventy-two thousand, six hundred fifty-six".