65314441920 has 224 divisors, whose sum is σ = 255229083648. Its totient is φ = 13780611072.

The previous prime is 65314441909. The next prime is 65314441957. The reversal of 65314441920 is 2914441356.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 286464 + ... + 461183.

It is an arithmetic number, because the mean of its divisors is an integer number (1139415552).

Almost surely, 2^65314441920 is an apocalyptic number.

65314441920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65314441920 is an abundant number, since it is smaller than the sum of its proper divisors (189914641728).

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

65314441920 is a wasteful number, since it uses less digits than its factorization.

65314441920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747687 (or 747677 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 65314441920 in words is "sixty-five billion, three hundred fourteen million, four hundred forty-one thousand, nine hundred twenty".