70165257581945 has 16 divisors (see below), whose sum is σ = 85795215697152. Its totient is φ = 55067805599040.

The previous prime is 70165257581927. The next prime is 70165257581957. The reversal of 70165257581945 is 54918575256107.

It is not a de Polignac number, because 70165257581945 - 2³⁴ = 70148077712761 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9986957 + ... + 15494186.

It is an arithmetic number, because the mean of its divisors is an integer number (5362200981072).

Almost surely, 2^{70165257581945} is an apocalyptic number.

It is an amenable number.

70165257581945 is a deficient number, since it is larger than the sum of its proper divisors (15629958115207).

70165257581945 is a wasteful number, since it uses less digits than its factorization.

70165257581945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25491592.

The product of its (nonzero) digits is 105840000, while the sum is 65.

The spelling of 70165257581945 in words is "seventy trillion, one hundred sixty-five billion, two hundred fifty-seven million, five hundred eighty-one thousand, nine hundred forty-five".