646072514160 has 160 divisors (see below), whose sum is σ = 2022527335680. Its totient is φ = 170592743424.

The previous prime is 646072514141. The next prime is 646072514173. The reversal of 646072514160 is 61415270646.

646072514160 is digitally balanced in base 2 and base 4, because in such bases 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 31 ways as a sum of consecutive naturals, for example, 66994299 + ... + 67003941.

It is an arithmetic number, because the mean of its divisors is an integer number (12640795848).

Almost surely, 2^646072514160 is an apocalyptic number.

646072514160 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 646072514160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1011263667840).

646072514160 is an abundant number, since it is smaller than the sum of its proper divisors (1376454821520).

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

646072514160 is a wasteful number, since it uses less digits than its factorization.

646072514160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12375 (or 12369 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 646072514160 in words is "six hundred forty-six billion, seventy-two million, five hundred fourteen thousand, one hundred sixty".