80259966402 has 192 divisors, whose sum is σ = 217455528960. Its totient is φ = 19470326400.

The previous prime is 80259966379. The next prime is 80259966419. The reversal of 80259966402 is 20466995208.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4353468 + ... + 4371864.

It is an arithmetic number, because the mean of its divisors is an integer number (1132580880).

Almost surely, 2^80259966402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80259966402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108727764480).

80259966402 is an abundant number, since it is smaller than the sum of its proper divisors (137195562558).

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

80259966402 is a wasteful number, since it uses less digits than its factorization.

80259966402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18517 (or 18510 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 80259966402 in words is "eighty billion, two hundred fifty-nine million, nine hundred sixty-six thousand, four hundred two".