80421251466 has 32 divisors (see below), whose sum is σ = 164627483328. Its totient is φ = 26176590720.

The previous prime is 80421251461. The next prime is 80421251587. The reversal of 80421251466 is 66415212408.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80421251461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 961140 + ... + 1041456.

It is an arithmetic number, because the mean of its divisors is an integer number (5144608854).

Almost surely, 2^80421251466 is an apocalyptic number.

80421251466 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

80421251466 is an abundant number, since it is smaller than the sum of its proper divisors (84206231862).

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

80421251466 is a wasteful number, since it uses less digits than its factorization.

80421251466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84246.

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 80421251466 in words is "eighty billion, four hundred twenty-one million, two hundred fifty-one thousand, four hundred sixty-six".