80666352 has 120 divisors (see below), whose sum is σ = 249286128. Its totient is φ = 24192000.

The previous prime is 80666329. The next prime is 80666353. The reversal of 80666352 is 25366608.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80666353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76227 + ... + 77277.

Almost surely, 2^80666352 is an apocalyptic number.

80666352 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80666352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124643064).

80666352 is an abundant number, since it is smaller than the sum of its proper divisors (168619776).

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

80666352 is a wasteful number, since it uses less digits than its factorization.

80666352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119 (or 1110 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 80666352 is about 8981.4448726249. Note that the first 3 decimals coincide. The cubic root of 80666352 is about 432.0799749055.

It can be divided in two parts, 80666 and 352, that added together give a palindrome (81018).

The spelling of 80666352 in words is "eighty million, six hundred sixty-six thousand, three hundred fifty-two".