70705896561 has 12 divisors (see below), whose sum is σ = 102934920192. Its totient is φ = 46766104056.

The previous prime is 70705896559. The next prime is 70705896577. The reversal of 70705896561 is 16569850707.

70705896561 is a `hidden beast` number, since 7 + 0 + 7 + 0 + 589 + 6 + 56 + 1 = 666.

It is not a de Polignac number, because 70705896561 - 2¹ = 70705896559 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 70705896498 and 70705896507.

It is not an unprimeable number, because it can be changed into a prime (70705896551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30928821 + ... + 30931106.

It is an arithmetic number, because the mean of its divisors is an integer number (8577910016).

Almost surely, 2^70705896561 is an apocalyptic number.

It is an amenable number.

70705896561 is a deficient number, since it is larger than the sum of its proper divisors (32229023631).

70705896561 is a wasteful number, since it uses less digits than its factorization.

70705896561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61860060 (or 61860057 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 54.

The spelling of 70705896561 in words is "seventy billion, seven hundred five million, eight hundred ninety-six thousand, five hundred sixty-one".