72226161706 has 8 divisors (see below), whose sum is σ = 108358860960. Its totient is φ = 36106541388.

The previous prime is 72226161701. The next prime is 72226161719. The reversal of 72226161706 is 60716162227.

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

It is not an unprimeable number, because it can be changed into a prime (72226161701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3255916 + ... + 3278023.

It is an arithmetic number, because the mean of its divisors is an integer number (13544857620).

Almost surely, 2^72226161706 is an apocalyptic number.

72226161706 is a deficient number, since it is larger than the sum of its proper divisors (36132699254).

72226161706 is a wasteful number, since it uses less digits than its factorization.

72226161706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6539468.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 72226161706 in words is "seventy-two billion, two hundred twenty-six million, one hundred sixty-one thousand, seven hundred six".