650640056606 has 4 divisors (see below), whose sum is σ = 975960084912. Its totient is φ = 325320028302.

The previous prime is 650640056567. The next prime is 650640056617. The reversal of 650640056606 is 606650046056.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162660014150 + ... + 162660014153.

It is an arithmetic number, because the mean of its divisors is an integer number (243990021228).

Almost surely, 2^650640056606 is an apocalyptic number.

650640056606 is a deficient number, since it is larger than the sum of its proper divisors (325320028306).

650640056606 is a wasteful number, since it uses less digits than its factorization.

650640056606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325320028305.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 650640056606 in words is "six hundred fifty billion, six hundred forty million, fifty-six thousand, six hundred six".