105979716671 has 4 divisors (see below), whose sum is σ = 106024080600. Its totient is φ = 105935352744.

The previous prime is 105979716649. The next prime is 105979716673. The reversal of 105979716671 is 176617979501.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 105979716671 - 2⁶ = 105979716607 is a prime.

It is a super-2 number, since 2×105979716671² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105979716671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105979716673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22178381 + ... + 22183158.

It is an arithmetic number, because the mean of its divisors is an integer number (26506020150).

Almost surely, 2^105979716671 is an apocalyptic number.

105979716671 is a deficient number, since it is larger than the sum of its proper divisors (44363929).

105979716671 is an equidigital number, since it uses as much as digits as its factorization.

105979716671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44363928.

The product of its (nonzero) digits is 5000940, while the sum is 59.

The spelling of 105979716671 in words is "one hundred five billion, nine hundred seventy-nine million, seven hundred sixteen thousand, six hundred seventy-one".