72222016867 has 32 divisors (see below), whose sum is σ = 97012790784. Its totient is φ = 51924672000.

The previous prime is 72222016807. The next prime is 72222016883. The reversal of 72222016867 is 76861022227.

It is a cyclic number.

It is not a de Polignac number, because 72222016867 - 2⁷ = 72222016739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72222016807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2404492 + ... + 2434342.

It is an arithmetic number, because the mean of its divisors is an integer number (3031649712).

Almost surely, 2^72222016867 is an apocalyptic number.

72222016867 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

72222016867 is a deficient number, since it is larger than the sum of its proper divisors (24790773917).

72222016867 is a wasteful number, since it uses less digits than its factorization.

72222016867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32299.

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 72222016867 in words is "seventy-two billion, two hundred twenty-two million, sixteen thousand, eight hundred sixty-seven".