70611427665 has 24 divisors (see below), whose sum is σ = 122447689728. Its totient is φ = 37642644000.

The previous prime is 70611427609. The next prime is 70611427687. The reversal of 70611427665 is 56672411607.

70611427665 is a `hidden beast` number, since 7 + 0 + 611 + 4 + 27 + 6 + 6 + 5 = 666.

It is not a de Polignac number, because 70611427665 - 2²⁰ = 70610379089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 70611427665.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247249 + ... + 449838.

It is an arithmetic number, because the mean of its divisors is an integer number (5101987072).

Almost surely, 2^70611427665 is an apocalyptic number.

It is an amenable number.

70611427665 is a deficient number, since it is larger than the sum of its proper divisors (51836262063).

70611427665 is a wasteful number, since it uses less digits than its factorization.

70611427665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699349 (or 699346 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 70611427665 in words is "seventy billion, six hundred eleven million, four hundred twenty-seven thousand, six hundred sixty-five".