72266601 has 16 divisors (see below), whose sum is σ = 105536448. Its totient is φ = 43622400.

The previous prime is 72266591. The next prime is 72266627. The reversal of 72266601 is 10666227.

It is not a de Polignac number, because 72266601 - 2¹⁰ = 72265577 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72266801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4221 + ... + 12741.

It is an arithmetic number, because the mean of its divisors is an integer number (6596028).

Almost surely, 2^72266601 is an apocalyptic number.

It is an amenable number.

72266601 is a deficient number, since it is larger than the sum of its proper divisors (33269847).

72266601 is a wasteful number, since it uses less digits than its factorization.

72266601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8792.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 72266601 is about 8500.9764733235. The cubic root of 72266601 is about 416.5296066176.

The spelling of 72266601 in words is "seventy-two million, two hundred sixty-six thousand, six hundred one".