64602798120 has 192 divisors, whose sum is σ = 244020816000. Its totient is φ = 14516043264.

The previous prime is 64602798119. The next prime is 64602798191. The reversal of 64602798120 is 2189720646.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68575 + ... + 365934.

It is an arithmetic number, because the mean of its divisors is an integer number (1270941750).

Almost surely, 2^64602798120 is an apocalyptic number.

64602798120 is a gapful number since it is divisible by the number (60) 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 64602798120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122010408000).

64602798120 is an abundant number, since it is smaller than the sum of its proper divisors (179418017880).

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

64602798120 is a wasteful number, since it uses less digits than its factorization.

64602798120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434592 (or 434585 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 64602798120 in words is "sixty-four billion, six hundred two million, seven hundred ninety-eight thousand, one hundred twenty".