105120612425665 has 8 divisors (see below), whose sum is σ = 126153708797160. Its totient is φ = 84090507349632.

The previous prime is 105120612425641. The next prime is 105120612425749. The reversal of 105120612425665 is 566524216021501.

It can be written as a sum of positive squares in 4 ways, for example, as 7991092229904 + 97129520195761 = 2826852^2 + 9855431^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105120612425665 is a prime.

It is a super-2 number, since 2×105120612425665² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747746550 + ... + 747887119.

It is an arithmetic number, because the mean of its divisors is an integer number (15769213599645).

Almost surely, 2^{105120612425665} is an apocalyptic number.

It is an amenable number.

105120612425665 is a deficient number, since it is larger than the sum of its proper divisors (21033096371495).

105120612425665 is a wasteful number, since it uses less digits than its factorization.

105120612425665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495647731.

The product of its (nonzero) digits is 864000, while the sum is 46.

The spelling of 105120612425665 in words is "one hundred five trillion, one hundred twenty billion, six hundred twelve million, four hundred twenty-five thousand, six hundred sixty-five".