80475102666 has 144 divisors (see below), whose sum is σ = 210754698336. Its totient is φ = 22947823584.

The previous prime is 80475102637. The next prime is 80475102667. The reversal of 80475102666 is 66620157408.

It is not an unprimeable number, because it can be changed into a prime (80475102667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 13261365 + ... + 13267431.

It is an arithmetic number, because the mean of its divisors is an integer number (1463574294).

Almost surely, 2^80475102666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80475102666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105377349168).

80475102666 is an abundant number, since it is smaller than the sum of its proper divisors (130279595670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80475102666 is a wasteful number, since it uses less digits than its factorization.

80475102666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6655 (or 6636 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 80475102666 in words is "eighty billion, four hundred seventy-five million, one hundred two thousand, six hundred sixty-six".