80665952 has 48 divisors (see below), whose sum is σ = 170372160. Its totient is φ = 37459968.

The previous prime is 80665943. The next prime is 80665961. The reversal of 80665952 is 25956608.

It is an interprime number because it is at equal distance from previous prime (80665943) and next prime (80665961).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42038 + ... + 43914.

It is an arithmetic number, because the mean of its divisors is an integer number (3549420).

Almost surely, 2^80665952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80665952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85186080).

80665952 is an abundant number, since it is smaller than the sum of its proper divisors (89706208).

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

80665952 is a wasteful number, since it uses less digits than its factorization.

80665952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983 (or 1975 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 80665952 is about 8981.4226044653. The cubic root of 80665952 is about 432.0792607198.

The spelling of 80665952 in words is "eighty million, six hundred sixty-five thousand, nine hundred fifty-two".