80806664466402 has 128 divisors (see below), whose sum is σ = 205625904099840. Its totient is φ = 20636290805760.

The previous prime is 80806664466397. The next prime is 80806664466413. The reversal of 80806664466402 is 20466446660808.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30725233 + ... + 33251364.

It is an arithmetic number, because the mean of its divisors is an integer number (1606452375780).

Almost surely, 2^{80806664466402} is an apocalyptic number.

80806664466402 is an abundant number, since it is smaller than the sum of its proper divisors (124819239633438).

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

80806664466402 is a wasteful number, since it uses less digits than its factorization.

80806664466402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63976716.

The product of its (nonzero) digits is 63700992, while the sum is 60.

The spelling of 80806664466402 in words is "eighty trillion, eight hundred six billion, six hundred sixty-four million, four hundred sixty-six thousand, four hundred two".