65715348720 has 160 divisors (see below), whose sum is σ = 237213245952. Its totient is φ = 14737222656.

The previous prime is 65715348719. The next prime is 65715348799. The reversal of 65715348720 is 2784351756.

65715348720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 65715348720.

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, 279982 + ... + 458061.

Almost surely, 2^65715348720 is an apocalyptic number.

65715348720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65715348720 is an abundant number, since it is smaller than the sum of its proper divisors (171497897232).

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

65715348720 is a wasteful number, since it uses less digits than its factorization.

65715348720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738119 (or 738113 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 65715348720 in words is "sixty-five billion, seven hundred fifteen million, three hundred forty-eight thousand, seven hundred twenty".