72247167152445 has 16 divisors (see below), whose sum is σ = 115687282777920. Its totient is φ = 38501217369984.

The previous prime is 72247167152423. The next prime is 72247167152507. The reversal of 72247167152445 is 54425176174227.

It is not a de Polignac number, because 72247167152445 - 2⁹ = 72247167151933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1912799944 + ... + 1912837713.

It is an arithmetic number, because the mean of its divisors is an integer number (7230455173620).

Almost surely, 2^{72247167152445} is an apocalyptic number.

It is an amenable number.

72247167152445 is a deficient number, since it is larger than the sum of its proper divisors (43440115625475).

72247167152445 is a wasteful number, since it uses less digits than its factorization.

72247167152445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3825638924.

The product of its digits is 26342400, while the sum is 57.

The spelling of 72247167152445 in words is "seventy-two trillion, two hundred forty-seven billion, one hundred sixty-seven million, one hundred fifty-two thousand, four hundred forty-five".