65772196078432 has 96 divisors (see below), whose sum is σ = 140456652315840. Its totient is φ = 30195286917120.

The previous prime is 65772196078429. The next prime is 65772196078471. The reversal of 65772196078432 is 23487069127756.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586739893 + ... + 586851979.

It is an arithmetic number, because the mean of its divisors is an integer number (1463090128290).

It is a 1-persistent number, because it is pandigital, but 2⋅65772196078432 = 131544392156864 is not.

Almost surely, 2^{65772196078432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65772196078432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70228326157920).

65772196078432 is an abundant number, since it is smaller than the sum of its proper divisors (74684456237408).

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

65772196078432 is a wasteful number, since it uses less digits than its factorization.

65772196078432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138464 (or 138456 counting only the distinct ones).

The product of its (nonzero) digits is 213373440, while the sum is 67.

The spelling of 65772196078432 in words is "sixty-five trillion, seven hundred seventy-two billion, one hundred ninety-six million, seventy-eight thousand, four hundred thirty-two".