72246645151 has 4 divisors (see below), whose sum is σ = 72352424232. Its totient is φ = 72140866072.

The previous prime is 72246645127. The next prime is 72246645239. The reversal of 72246645151 is 15154664227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15154664227 = 773 ⋅19604999.

It is a cyclic number.

It is not a de Polignac number, because 72246645151 - 2¹¹ = 72246643103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72246645098 and 72246645107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72246685151) 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, 52888516 + ... + 52889881.

It is an arithmetic number, because the mean of its divisors is an integer number (18088106058).

Almost surely, 2^72246645151 is an apocalyptic number.

72246645151 is a deficient number, since it is larger than the sum of its proper divisors (105779081).

72246645151 is a wasteful number, since it uses less digits than its factorization.

72246645151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105779080.

The product of its digits is 403200, while the sum is 43.

The spelling of 72246645151 in words is "seventy-two billion, two hundred forty-six million, six hundred forty-five thousand, one hundred fifty-one".