640060030080 has 1280 divisors, whose sum is σ = 2504853331200. Its totient is φ = 155256127488.

The previous prime is 640060030039. The next prime is 640060030123. The reversal of 640060030080 is 80030060046.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 3699768874 + ... + 3699769046.

It is an arithmetic number, because the mean of its divisors is an integer number (1956916665).

Almost surely, 2^640060030080 is an apocalyptic number.

640060030080 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 640060030080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1252426665600).

640060030080 is an abundant number, since it is smaller than the sum of its proper divisors (1864793301120).

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

640060030080 is a wasteful number, since it uses less digits than its factorization.

640060030080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The spelling of 640060030080 in words is "six hundred forty billion, sixty million, thirty thousand, eighty".