70775120661 has 32 divisors (see below), whose sum is σ = 108242005248. Its totient is φ = 40295370240.

The previous prime is 70775120653. The next prime is 70775120683. The reversal of 70775120661 is 16602157707.

It is not a de Polignac number, because 70775120661 - 2³ = 70775120653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70775120621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7029571 + ... + 7039631.

It is an arithmetic number, because the mean of its divisors is an integer number (3382562664).

Almost surely, 2^70775120661 is an apocalyptic number.

It is an amenable number.

70775120661 is a deficient number, since it is larger than the sum of its proper divisors (37466884587).

70775120661 is a wasteful number, since it uses less digits than its factorization.

70775120661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11261.

The product of its (nonzero) digits is 123480, while the sum is 42.

The spelling of 70775120661 in words is "seventy billion, seven hundred seventy-five million, one hundred twenty thousand, six hundred sixty-one".