70211665168 has 20 divisors (see below), whose sum is σ = 136041097500. Its totient is φ = 35104285184.

The previous prime is 70211665159. The next prime is 70211665193. The reversal of 70211665168 is 86156611207.

It can be written as a sum of positive squares in 2 ways, for example, as 32642371584 + 37569293584 = 180672^2 + 193828^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336396 + ... + 503572.

It is an arithmetic number, because the mean of its divisors is an integer number (6802054875).

Almost surely, 2^70211665168 is an apocalyptic number.

It is an amenable number.

70211665168 is a deficient number, since it is larger than the sum of its proper divisors (65829432332).

70211665168 is a wasteful number, since it uses less digits than its factorization.

70211665168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193434 (or 193428 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 70211665168 in words is "seventy billion, two hundred eleven million, six hundred sixty-five thousand, one hundred sixty-eight".