105444216678066 has 32 divisors (see below), whose sum is σ = 241016118743040. Its totient is φ = 30126823258896.

The previous prime is 105444216678029. The next prime is 105444216678067. The reversal of 105444216678066 is 660876612444501.

It is a super-2 number, since 2×105444216678066² (a number of 29 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 9947775 + ... + 17602461.

It is an arithmetic number, because the mean of its divisors is an integer number (7531753710720).

Almost surely, 2^{105444216678066} is an apocalyptic number.

105444216678066 is an abundant number, since it is smaller than the sum of its proper divisors (135571902064974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105444216678066 is a wasteful number, since it uses less digits than its factorization.

105444216678066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7982678.

The product of its (nonzero) digits is 46448640, while the sum is 60.

The spelling of 105444216678066 in words is "one hundred five trillion, four hundred forty-four billion, two hundred sixteen million, six hundred seventy-eight thousand, sixty-six".