880505966691 has 24 divisors (see below), whose sum is σ = 1429227080736. Its totient is φ = 518291136000.

The previous prime is 880505966647. The next prime is 880505966749. The reversal of 880505966691 is 196669505088.

It is not a de Polignac number, because 880505966691 - 2¹¹ = 880505964643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (880505966611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163599310 + ... + 163604691.

It is an arithmetic number, because the mean of its divisors is an integer number (59551128364).

Almost surely, 2^880505966691 is an apocalyptic number.

880505966691 is a deficient number, since it is larger than the sum of its proper divisors (548721114045).

880505966691 is a wasteful number, since it uses less digits than its factorization.

880505966691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327204043 (or 327204040 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 63.

The spelling of 880505966691 in words is "eight hundred eighty billion, five hundred five million, nine hundred sixty-six thousand, six hundred ninety-one".