621340717606 has 32 divisors (see below), whose sum is σ = 1071771616512. Its totient is φ = 264639075360.

The previous prime is 621340717531. The next prime is 621340717619. The reversal of 621340717606 is 606717043126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1594641 + ... + 1945651.

It is an arithmetic number, because the mean of its divisors is an integer number (33492863016).

Almost surely, 2^621340717606 is an apocalyptic number.

621340717606 is a deficient number, since it is larger than the sum of its proper divisors (450430898906).

621340717606 is a wasteful number, since it uses less digits than its factorization.

621340717606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351804.

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 621340717606 in words is "six hundred twenty-one billion, three hundred forty million, seven hundred seventeen thousand, six hundred six".