105670018562621 has 4 divisors (see below), whose sum is σ = 105685578872544. Its totient is φ = 105654458252700.

The previous prime is 105670018562609. The next prime is 105670018562627. The reversal of 105670018562621 is 126265810076501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105670018562621 is a prime.

It is a super-2 number, since 2×105670018562621² (a number of 29 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 105670018562621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105670018562627) 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, 7780144775 + ... + 7780158356.

It is an arithmetic number, because the mean of its divisors is an integer number (26421394718136).

Almost surely, 2^{105670018562621} is an apocalyptic number.

It is an amenable number.

105670018562621 is a deficient number, since it is larger than the sum of its proper divisors (15560309923).

105670018562621 is an equidigital number, since it uses as much as digits as its factorization.

105670018562621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15560309922.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 105670018562621 in words is "one hundred five trillion, six hundred seventy billion, eighteen million, five hundred sixty-two thousand, six hundred twenty-one".