70656557353 has 4 divisors (see below), whose sum is σ = 70666306308. Its totient is φ = 70646808400.

The previous prime is 70656557351. The next prime is 70656557381. The reversal of 70656557353 is 35375565607.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32174673129 + 38481884224 = 179373^2 + 196168^2 .

It is a cyclic number.

It is not a de Polignac number, because 70656557353 - 2¹ = 70656557351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70656557353.

It is not an unprimeable number, because it can be changed into a prime (70656557351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4863598 + ... + 4878103.

It is an arithmetic number, because the mean of its divisors is an integer number (17666576577).

Almost surely, 2^70656557353 is an apocalyptic number.

It is an amenable number.

70656557353 is a deficient number, since it is larger than the sum of its proper divisors (9748955).

70656557353 is an equidigital number, since it uses as much as digits as its factorization.

70656557353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9748954.

The product of its (nonzero) digits is 9922500, while the sum is 52.

The spelling of 70656557353 in words is "seventy billion, six hundred fifty-six million, five hundred fifty-seven thousand, three hundred fifty-three".