64165270392 has 240 divisors, whose sum is σ = 187121476080. Its totient is φ = 20541185280.

The previous prime is 64165270331. The next prime is 64165270417. The reversal of 64165270392 is 29307256146.

64165270392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 103995268 + ... + 103995884.

It is an arithmetic number, because the mean of its divisors is an integer number (779672817).

Almost surely, 2^64165270392 is an apocalyptic number.

64165270392 is a gapful number since it is divisible by the number (62) 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 64165270392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93560738040).

64165270392 is an abundant number, since it is smaller than the sum of its proper divisors (122956205688).

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

64165270392 is a wasteful number, since it uses less digits than its factorization.

64165270392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 64165270392 in words is "sixty-four billion, one hundred sixty-five million, two hundred seventy thousand, three hundred ninety-two".