72266361507037 has 4 divisors (see below), whose sum is σ = 72342191897820. Its totient is φ = 72190531116256.

The previous prime is 72266361507017. The next prime is 72266361507049. The reversal of 72266361507037 is 73070516366227.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52284844642276 + 19981516864761 = 7230826^2 + 4470069^2 .

It is a cyclic number.

It is not a de Polignac number, because 72266361507037 - 2³⁵ = 72232001768669 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 (72266361507017) 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, 37915193962 + ... + 37915195867.

It is an arithmetic number, because the mean of its divisors is an integer number (18085547974455).

Almost surely, 2^{72266361507037} is an apocalyptic number.

It is an amenable number.

72266361507037 is a deficient number, since it is larger than the sum of its proper divisors (75830390783).

72266361507037 is an equidigital number, since it uses as much as digits as its factorization.

72266361507037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75830390782.

The product of its (nonzero) digits is 13335840, while the sum is 55.

The spelling of 72266361507037 in words is "seventy-two trillion, two hundred sixty-six billion, three hundred sixty-one million, five hundred seven thousand, thirty-seven".