44664505620 has 96 divisors (see below), whose sum is σ = 151333878528. Its totient is φ = 9608497152.

The previous prime is 44664505601. The next prime is 44664505651. The reversal of 44664505620 is 2650546644.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 3120627 + ... + 3134906.

It is an arithmetic number, because the mean of its divisors is an integer number (1576394568).

Almost surely, 2^44664505620 is an apocalyptic number.

It is an amenable number.

44664505620 is an abundant number, since it is smaller than the sum of its proper divisors (106669372908).

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

44664505620 is a wasteful number, since it uses less digits than its factorization.

44664505620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6255569 (or 6255567 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 44664505620 in words is "forty-four billion, six hundred sixty-four million, five hundred five thousand, six hundred twenty".