640013545710 has 192 divisors, whose sum is σ = 2196679440384. Its totient is φ = 125166873600.

The previous prime is 640013545697. The next prime is 640013545799. The reversal of 640013545710 is 17545310046.

640013545710 is a `hidden beast` number, since 6 + 40 + 0 + 1 + 3 + 545 + 71 + 0 = 666.

640013545710 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 95 ways as a sum of consecutive naturals, for example, 2598486 + ... + 2834105.

It is an arithmetic number, because the mean of its divisors is an integer number (11441038752).

Almost surely, 2^640013545710 is an apocalyptic number.

640013545710 is an abundant number, since it is smaller than the sum of its proper divisors (1556665894674).

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

640013545710 is a wasteful number, since it uses less digits than its factorization.

640013545710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5432639 (or 5432636 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

Adding to 640013545710 its reverse (17545310046), we get a palindrome (657558855756).

It can be divided in two parts, 6400135 and 45710, that added together give a triangular number (6445845 = T₃₅₉₀).

The spelling of 640013545710 in words is "six hundred forty billion, thirteen million, five hundred forty-five thousand, seven hundred ten".