21622066664042 has 16 divisors (see below), whose sum is σ = 35006798000160. Its totient is φ = 9956888481072.

The previous prime is 21622066663999. The next prime is 21622066664071. The reversal of 21622066664042 is 24046666022612.

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, 938609192 + ... + 938632227.

It is an arithmetic number, because the mean of its divisors is an integer number (2187924875010).

Almost surely, 2^{21622066664042} is an apocalyptic number.

21622066664042 is a deficient number, since it is larger than the sum of its proper divisors (13384731336118).

21622066664042 is a wasteful number, since it uses less digits than its factorization.

21622066664042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877241877.

The product of its (nonzero) digits is 1990656, while the sum is 47.

The spelling of 21622066664042 in words is "twenty-one trillion, six hundred twenty-two billion, sixty-six million, six hundred sixty-four thousand, forty-two".