72215715158 has 8 divisors (see below), whose sum is σ = 108331629528. Its totient is φ = 36105171984.

The previous prime is 72215715133. The next prime is 72215715161. The reversal of 72215715158 is 85151751227.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1309016 + ... + 1363067.

It is an arithmetic number, because the mean of its divisors is an integer number (13541453691).

Almost surely, 2^72215715158 is an apocalyptic number.

72215715158 is a deficient number, since it is larger than the sum of its proper divisors (36115914370).

72215715158 is a wasteful number, since it uses less digits than its factorization.

72215715158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685598.

The product of its digits is 196000, while the sum is 44.

The spelling of 72215715158 in words is "seventy-two billion, two hundred fifteen million, seven hundred fifteen thousand, one hundred fifty-eight".