80455681 has 8 divisors (see below), whose sum is σ = 82520064. Its totient is φ = 78406080.

The previous prime is 80455673. The next prime is 80455699. The reversal of 80455681 is 18655408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80455681 - 2³ = 80455673 is a prime.

It is a super-2 number, since 2×80455681² = 12946233210347522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80455681.

It is not an unprimeable number, because it can be changed into a prime (80455621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7776 + ... + 14878.

It is an arithmetic number, because the mean of its divisors is an integer number (10315008).

Almost surely, 2^80455681 is an apocalyptic number.

It is an amenable number.

80455681 is a deficient number, since it is larger than the sum of its proper divisors (2064383).

80455681 is a wasteful number, since it uses less digits than its factorization.

80455681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7391.

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 80455681 is about 8969.7090811241. The cubic root of 80455681 is about 431.7035020386.

The spelling of 80455681 in words is "eighty million, four hundred fifty-five thousand, six hundred eighty-one".