72646242665203 has 8 divisors (see below), whose sum is σ = 73086804338688. Its totient is φ = 72205747113864.

The previous prime is 72646242665189. The next prime is 72646242665251. The reversal of 72646242665203 is 30256624264627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72646242665203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72646242665903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14325651 + ... + 18722092.

It is an arithmetic number, because the mean of its divisors is an integer number (9135850542336).

Almost surely, 2^{72646242665203} is an apocalyptic number.

72646242665203 is a deficient number, since it is larger than the sum of its proper divisors (440561673485).

72646242665203 is a wasteful number, since it uses less digits than its factorization.

72646242665203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33061073.

The product of its (nonzero) digits is 34836480, while the sum is 55.

The spelling of 72646242665203 in words is "seventy-two trillion, six hundred forty-six billion, two hundred forty-two million, six hundred sixty-five thousand, two hundred three".