729166680 has 96 divisors (see below), whose sum is σ = 2585241360. Its totient is φ = 176766720.

The previous prime is 729166679. The next prime is 729166681. The reversal of 729166680 is 86661927.

It is an interprime number because it is at equal distance from previous prime (729166679) and next prime (729166681).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729166681) 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, 88107 + ... + 96026.

Almost surely, 2^729166680 is an apocalyptic number.

It is an amenable number.

729166680 is an abundant number, since it is smaller than the sum of its proper divisors (1856074680).

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

729166680 is a wasteful number, since it uses less digits than its factorization.

729166680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184161 (or 184154 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 729166680 is about 27003.0864902514. The cubic root of 729166680 is about 900.0685873655.

The spelling of 729166680 in words is "seven hundred twenty-nine million, one hundred sixty-six thousand, six hundred eighty".