105444216678065 has 8 divisors (see below), whose sum is σ = 133192694751360. Its totient is φ = 79915616850672.

The previous prime is 105444216678029. The next prime is 105444216678067. The reversal of 105444216678065 is 560876612444501.

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

It is a cyclic number.

It is not a de Polignac number, because 105444216678065 - 2⁸ = 105444216677809 is a prime.

It is a super-2 number, since 2×105444216678065² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105444216677995 and 105444216678013.

It is not an unprimeable number, because it can be changed into a prime (105444216678067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554969561369 + ... + 554969561558.

It is an arithmetic number, because the mean of its divisors is an integer number (16649086843920).

Almost surely, 2^{105444216678065} is an apocalyptic number.

It is an amenable number.

105444216678065 is a deficient number, since it is larger than the sum of its proper divisors (27748478073295).

105444216678065 is a wasteful number, since it uses less digits than its factorization.

105444216678065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109939122951.

The product of its (nonzero) digits is 38707200, while the sum is 59.

The spelling of 105444216678065 in words is "one hundred five trillion, four hundred forty-four billion, two hundred sixteen million, six hundred seventy-eight thousand, sixty-five".