64799365120 has 384 divisors, whose sum is σ = 192881969280. Its totient is φ = 20384317440.

The previous prime is 64799365109. The next prime is 64799365133. The reversal of 64799365120 is 2156399746.

It is a happy number.

It is a super-2 number, since 2×64799365120² (a number of 22 digits) contains 22 as substring.

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, 49960312 + ... + 49961608.

It is an arithmetic number, because the mean of its divisors is an integer number (502296795).

Almost surely, 2^64799365120 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 64799365120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96440984640).

64799365120 is an abundant number, since it is smaller than the sum of its proper divisors (128082604160).

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

64799365120 is a wasteful number, since it uses less digits than its factorization.

64799365120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389 (or 1369 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 52.

The spelling of 64799365120 in words is "sixty-four billion, seven hundred ninety-nine million, three hundred sixty-five thousand, one hundred twenty".