72266330524 has 6 divisors (see below), whose sum is σ = 126466078424. Its totient is φ = 36133165260.

The previous prime is 72266330519. The next prime is 72266330581. The reversal of 72266330524 is 42503366227.

It is a happy number.

It is a super-2 number, since 2×72266330524² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9033291312 + ... + 9033291319.

Almost surely, 2^72266330524 is an apocalyptic number.

It is an amenable number.

72266330524 is a deficient number, since it is larger than the sum of its proper divisors (54199747900).

72266330524 is a wasteful number, since it uses less digits than its factorization.

72266330524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18066582635 (or 18066582633 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 40.

The spelling of 72266330524 in words is "seventy-two billion, two hundred sixty-six million, three hundred thirty thousand, five hundred twenty-four".