104991661622 has 4 divisors (see below), whose sum is σ = 157487492436. Its totient is φ = 52495830810.

The previous prime is 104991661603. The next prime is 104991661631. The reversal of 104991661622 is 226166199401.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×104991661622² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26247915404 + ... + 26247915407.

It is an arithmetic number, because the mean of its divisors is an integer number (39371873109).

Almost surely, 2^104991661622 is an apocalyptic number.

104991661622 is a deficient number, since it is larger than the sum of its proper divisors (52495830814).

104991661622 is an equidigital number, since it uses as much as digits as its factorization.

104991661622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52495830813.

The product of its (nonzero) digits is 279936, while the sum is 47.

The spelling of 104991661622 in words is "one hundred four billion, nine hundred ninety-one million, six hundred sixty-one thousand, six hundred twenty-two".