22061605202666 has 32 divisors (see below), whose sum is σ = 33545360424960. Its totient is φ = 10880867344896.

The previous prime is 22061605202657. The next prime is 22061605202699. The reversal of 22061605202666 is 66620250616022.

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, 228576530 + ... + 228673026.

It is an arithmetic number, because the mean of its divisors is an integer number (1048292513280).

Almost surely, 2^{22061605202666} is an apocalyptic number.

22061605202666 is a deficient number, since it is larger than the sum of its proper divisors (11483755222294).

22061605202666 is a wasteful number, since it uses less digits than its factorization.

22061605202666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101918.

The product of its (nonzero) digits is 622080, while the sum is 44.

Adding to 22061605202666 its reverse (66620250616022), we get a palindrome (88681855818688).

The spelling of 22061605202666 in words is "twenty-two trillion, sixty-one billion, six hundred five million, two hundred two thousand, six hundred sixty-six".