72166676 has 24 divisors (see below), whose sum is σ = 129185280. Its totient is φ = 35264000.

The previous prime is 72166673. The next prime is 72166711. The reversal of 72166676 is 67666127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72166673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44276 + ... + 45876.

It is an arithmetic number, because the mean of its divisors is an integer number (5382720).

Almost surely, 2^72166676 is an apocalyptic number.

It is an amenable number.

72166676 is a deficient number, since it is larger than the sum of its proper divisors (57018604).

72166676 is a wasteful number, since it uses less digits than its factorization.

72166676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855 (or 1853 counting only the distinct ones).

The product of its digits is 127008, while the sum is 41.

The square root of 72166676 is about 8495.0971742529. The cubic root of 72166676 is about 416.3375357811.

The spelling of 72166676 in words is "seventy-two million, one hundred sixty-six thousand, six hundred seventy-six".