80669813025 has 24 divisors (see below), whose sum is σ = 139172967360. Its totient is φ = 41153295040.

The previous prime is 80669812999. The next prime is 80669813041. The reversal of 80669813025 is 52031896608.

It is a happy number.

It is not a de Polignac number, because 80669813025 - 2¹² = 80669808929 is a prime.

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, 23380830 + ... + 23384279.

It is an arithmetic number, because the mean of its divisors is an integer number (5798873640).

Almost surely, 2^80669813025 is an apocalyptic number.

It is an amenable number.

80669813025 is a deficient number, since it is larger than the sum of its proper divisors (58503154335).

80669813025 is a wasteful number, since it uses less digits than its factorization.

80669813025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46765145 (or 46765140 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 80669813025 in words is "eighty billion, six hundred sixty-nine million, eight hundred thirteen thousand, twenty-five".