21602422713166 has 64 divisors (see below), whose sum is σ = 35231985930240. Its totient is φ = 9911111374080.

The previous prime is 21602422713077. The next prime is 21602422713173. The reversal of 21602422713166 is 66131722420612.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 43054410 + ... + 43553266.

It is an arithmetic number, because the mean of its divisors is an integer number (550499780160).

Almost surely, 2^{21602422713166} is an apocalyptic number.

21602422713166 is a deficient number, since it is larger than the sum of its proper divisors (13629563217074).

21602422713166 is a wasteful number, since it uses less digits than its factorization.

21602422713166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499409.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 21602422713166 in words is "twenty-one trillion, six hundred two billion, four hundred twenty-two million, seven hundred thirteen thousand, one hundred sixty-six".