640115302266364 has 12 divisors (see below), whose sum is σ = 1131292885689288. Its totient is φ = 316888763498000.

The previous prime is 640115302266343. The next prime is 640115302266437. The reversal of 640115302266364 is 463662203511046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792221908342 + ... + 792221909149.

It is an arithmetic number, because the mean of its divisors is an integer number (94274407140774).

Almost surely, 2^{640115302266364} is an apocalyptic number.

It is an amenable number.

640115302266364 is a deficient number, since it is larger than the sum of its proper divisors (491177583422924).

640115302266364 is a wasteful number, since it uses less digits than its factorization.

640115302266364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584443817596 (or 1584443817594 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 49.

The spelling of 640115302266364 in words is "six hundred forty trillion, one hundred fifteen billion, three hundred two million, two hundred sixty-six thousand, three hundred sixty-four".