640052267603 has 32 divisors (see below), whose sum is σ = 768394045440. Its totient is φ = 521260185600.

The previous prime is 640052267599. The next prime is 640052267609. The reversal of 640052267603 is 306762250046.

It is not a de Polignac number, because 640052267603 - 2² = 640052267599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (640052267609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43038653 + ... + 43053521.

It is an arithmetic number, because the mean of its divisors is an integer number (24012313920).

Almost surely, 2^640052267603 is an apocalyptic number.

640052267603 is a deficient number, since it is larger than the sum of its proper divisors (128341777837).

640052267603 is a wasteful number, since it uses less digits than its factorization.

640052267603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16667.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 640052267603 in words is "six hundred forty billion, fifty-two million, two hundred sixty-seven thousand, six hundred three".