662418981922 has 8 divisors (see below), whose sum is σ = 1052077206636. Its totient is φ = 311726579712.

The previous prime is 662418981883. The next prime is 662418981943. The reversal of 662418981922 is 229189814266.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 624638896281 + 37780085641 = 790341^2 + 194371^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×662418981922² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9741455583 + ... + 9741455650.

Almost surely, 2^662418981922 is an apocalyptic number.

662418981922 is a deficient number, since it is larger than the sum of its proper divisors (389658224714).

662418981922 is a wasteful number, since it uses less digits than its factorization.

662418981922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19482911252.

The product of its digits is 5971968, while the sum is 58.

The spelling of 662418981922 in words is "six hundred sixty-two billion, four hundred eighteen million, nine hundred eighty-one thousand, nine hundred twenty-two".