80166736 has 20 divisors (see below), whose sum is σ = 167271412. Its totient is φ = 36999936.

The previous prime is 80166733. The next prime is 80166763. The reversal of 80166736 is 63766108.

It can be written as a sum of positive squares in 2 ways, for example, as 26584336 + 53582400 = 5156^2 + 7320^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80166695 and 80166704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80166733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192501 + ... + 192916.

Almost surely, 2^80166736 is an apocalyptic number.

It is an amenable number.

80166736 is an abundant number, since it is smaller than the sum of its proper divisors (87104676).

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

80166736 is a wasteful number, since it uses less digits than its factorization.

80166736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385438 (or 385432 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 80166736 is about 8953.5878841948. The cubic root of 80166736 is about 431.1860817961.

The spelling of 80166736 in words is "eighty million, one hundred sixty-six thousand, seven hundred thirty-six".