661626106022 has 64 divisors (see below), whose sum is σ = 1149316439040. Its totient is φ = 279807590400.

The previous prime is 661626105997. The next prime is 661626106033. The reversal of 661626106022 is 220601626166.

661626106022 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 31 ways as a sum of consecutive naturals, for example, 437872247 + ... + 437873757.

It is an arithmetic number, because the mean of its divisors is an integer number (17958069360).

Almost surely, 2^661626106022 is an apocalyptic number.

661626106022 is a deficient number, since it is larger than the sum of its proper divisors (487690333018).

661626106022 is a wasteful number, since it uses less digits than its factorization.

661626106022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 661626106022 in words is "six hundred sixty-one billion, six hundred twenty-six million, one hundred six thousand, twenty-two".