21980223660462 has 16 divisors (see below), whose sum is σ = 44019933726720. Its totient is φ = 7316826819192.

The previous prime is 21980223660407. The next prime is 21980223660481. The reversal of 21980223660462 is 26406632208912.

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, 2478595438 + ... + 2478604305.

It is an arithmetic number, because the mean of its divisors is an integer number (2751245857920).

Almost surely, 2^{21980223660462} is an apocalyptic number.

21980223660462 is an abundant number, since it is smaller than the sum of its proper divisors (22039710066258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21980223660462 is a wasteful number, since it uses less digits than its factorization.

21980223660462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4957200487.

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 21980223660462 in words is "twenty-one trillion, nine hundred eighty billion, two hundred twenty-three million, six hundred sixty thousand, four hundred sixty-two".