72011066 has 8 divisors (see below), whose sum is σ = 108086400. Its totient is φ = 35982268.

The previous prime is 72011063. The next prime is 72011087. The reversal of 72011066 is 66011027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72011063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7466 + ... + 14133.

It is an arithmetic number, because the mean of its divisors is an integer number (13510800).

Almost surely, 2^72011066 is an apocalyptic number.

72011066 is a deficient number, since it is larger than the sum of its proper divisors (36075334).

72011066 is a wasteful number, since it uses less digits than its factorization.

72011066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23268.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 72011066 is about 8485.9334194890. The cubic root of 72011066 is about 416.0380766737.

The spelling of 72011066 in words is "seventy-two million, eleven thousand, sixty-six".