70661071106655 has 16 divisors (see below), whose sum is σ = 113057828348544. Its totient is φ = 37685866397600.

The previous prime is 70661071106627. The next prime is 70661071106761. The reversal of 70661071106655 is 55660117016607.

It is not a de Polignac number, because 70661071106655 - 2¹⁰ = 70661071105631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70661071106598 and 70661071106607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19211452 + ... + 22592078.

It is an arithmetic number, because the mean of its divisors is an integer number (7066114271784).

Almost surely, 2^{70661071106655} is an apocalyptic number.

70661071106655 is a deficient number, since it is larger than the sum of its proper divisors (42396757241889).

70661071106655 is a wasteful number, since it uses less digits than its factorization.

70661071106655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774086.

The product of its (nonzero) digits is 1587600, while the sum is 51.

The spelling of 70661071106655 in words is "seventy trillion, six hundred sixty-one billion, seventy-one million, one hundred six thousand, six hundred fifty-five".