640506160062 has 48 divisors (see below), whose sum is σ = 1408752495072. Its totient is φ = 210279121920.

The previous prime is 640506160039. The next prime is 640506160067. The reversal of 640506160062 is 260061605046.

It is a happy number.

640506160062 is a `hidden beast` number, since 6 + 40 + 5 + 0 + 6 + 1 + 600 + 6 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 640506159999 and 640506160026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (640506160067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 992118 + ... + 1505094.

It is an arithmetic number, because the mean of its divisors is an integer number (29349010314).

Almost surely, 2^640506160062 is an apocalyptic number.

640506160062 is an abundant number, since it is smaller than the sum of its proper divisors (768246335010).

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

640506160062 is a wasteful number, since it uses less digits than its factorization.

640506160062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514033 (or 514030 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 640506160062 in words is "six hundred forty billion, five hundred six million, one hundred sixty thousand, sixty-two".