72266131207 has 4 divisors (see below), whose sum is σ = 72393137280. Its totient is φ = 72139125136.

The previous prime is 72266131193. The next prime is 72266131253. The reversal of 72266131207 is 70213166227.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72266131207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72266131277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63502183 + ... + 63503320.

It is an arithmetic number, because the mean of its divisors is an integer number (18098284320).

Almost surely, 2^72266131207 is an apocalyptic number.

72266131207 is a deficient number, since it is larger than the sum of its proper divisors (127006073).

72266131207 is a wasteful number, since it uses less digits than its factorization.

72266131207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127006072.

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 72266131207 in words is "seventy-two billion, two hundred sixty-six million, one hundred thirty-one thousand, two hundred seven".