20606640022 has 16 divisors (see below), whose sum is σ = 30996551520. Its totient is φ = 10274491008.

The previous prime is 20606640007. The next prime is 20606640053. The reversal of 20606640022 is 22004660602.

It is a super-2 number, since 2×20606640022² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1312543 + ... + 1328149.

It is an arithmetic number, because the mean of its divisors is an integer number (1937284470).

Almost surely, 2^20606640022 is an apocalyptic number.

20606640022 is a deficient number, since it is larger than the sum of its proper divisors (10389911498).

20606640022 is a wasteful number, since it uses less digits than its factorization.

20606640022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17415.

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 20606640022 in words is "twenty billion, six hundred six million, six hundred forty thousand, twenty-two".