117661921622 has 32 divisors (see below), whose sum is σ = 206020972800. Its totient is φ = 49355300448.

The previous prime is 117661921577. The next prime is 117661921633. The reversal of 117661921622 is 226129166711.

It is a super-2 number, since 2×117661921622² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 121868 + ... + 500175.

It is an arithmetic number, because the mean of its divisors is an integer number (6438155400).

Almost surely, 2^117661921622 is an apocalyptic number.

117661921622 is a deficient number, since it is larger than the sum of its proper divisors (88359051178).

117661921622 is a wasteful number, since it uses less digits than its factorization.

117661921622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622340.

The product of its digits is 108864, while the sum is 44.

The spelling of 117661921622 in words is "one hundred seventeen billion, six hundred sixty-one million, nine hundred twenty-one thousand, six hundred twenty-two".