18420322773662 has 16 divisors (see below), whose sum is σ = 29087272368000. Its totient is φ = 8724650391000.

The previous prime is 18420322773649. The next prime is 18420322773739. The reversal of 18420322773662 is 26637722302481.

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, 20829464 + ... + 21695787.

It is an arithmetic number, because the mean of its divisors is an integer number (1817954523000).

Almost surely, 2^{18420322773662} is an apocalyptic number.

18420322773662 is a deficient number, since it is larger than the sum of its proper divisors (10666949594338).

18420322773662 is a wasteful number, since it uses less digits than its factorization.

18420322773662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42536671.

The product of its (nonzero) digits is 8128512, while the sum is 53.

The spelling of 18420322773662 in words is "eighteen trillion, four hundred twenty billion, three hundred twenty-two million, seven hundred seventy-three thousand, six hundred sixty-two".