70111817145 has 12 divisors (see below), whose sum is σ = 121527149796. Its totient is φ = 37392969120.

The previous prime is 70111817131. The next prime is 70111817189. The reversal of 70111817145 is 54171811107.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7247287161 + 62864529984 = 85131^2 + 250728^2 .

It is not a de Polignac number, because 70111817145 - 2¹⁰ = 70111816121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 779020146 + ... + 779020235.

It is an arithmetic number, because the mean of its divisors is an integer number (10127262483).

Almost surely, 2^70111817145 is an apocalyptic number.

It is an amenable number.

70111817145 is a deficient number, since it is larger than the sum of its proper divisors (51415332651).

70111817145 is a wasteful number, since it uses less digits than its factorization.

70111817145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558040392 (or 1558040389 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 36.

The spelling of 70111817145 in words is "seventy billion, one hundred eleven million, eight hundred seventeen thousand, one hundred forty-five".