72345066 has 16 divisors (see below), whose sum is σ = 144811488. Its totient is φ = 24094800.

The previous prime is 72345029. The next prime is 72345071. The reversal of 72345066 is 66054327.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3921 + ... + 12651.

It is an arithmetic number, because the mean of its divisors is an integer number (9050718).

Almost surely, 2^72345066 is an apocalyptic number.

72345066 is an abundant number, since it is smaller than the sum of its proper divisors (72466422).

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

72345066 is a wasteful number, since it uses less digits than its factorization.

72345066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10117.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 72345066 is about 8505.5902793398. The cubic root of 72345066 is about 416.6803040514.

The spelling of 72345066 in words is "seventy-two million, three hundred forty-five thousand, sixty-six".