640116546246 has 12 divisors (see below), whose sum is σ = 1386919183572. Its totient is φ = 213372182076.

The previous prime is 640116546227. The next prime is 640116546263. The reversal of 640116546246 is 642645611046.

640116546246 is a `hidden beast` number, since 6 + 4 + 0 + 1 + 16 + 5 + 4 + 624 + 6 = 666.

640116546246 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 5 ways as a sum of consecutive naturals, for example, 17781015156 + ... + 17781015191.

It is an arithmetic number, because the mean of its divisors is an integer number (115576598631).

Almost surely, 2^640116546246 is an apocalyptic number.

640116546246 is an abundant number, since it is smaller than the sum of its proper divisors (746802637326).

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

640116546246 is a wasteful number, since it uses less digits than its factorization.

640116546246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35562030355 (or 35562030352 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 640116546246 in words is "six hundred forty billion, one hundred sixteen million, five hundred forty-six thousand, two hundred forty-six".