72156032207 has 8 divisors (see below), whose sum is σ = 82761743136. Its totient is φ = 61624747872.

The previous prime is 72156032197. The next prime is 72156032209. The reversal of 72156032207 is 70223065127.

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

It is a cyclic number.

It is not a de Polignac number, because 72156032207 - 2¹² = 72156028111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72156032209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18604568 + ... + 18608445.

It is an arithmetic number, because the mean of its divisors is an integer number (10345217892).

Almost surely, 2^72156032207 is an apocalyptic number.

72156032207 is a deficient number, since it is larger than the sum of its proper divisors (10605710929).

72156032207 is a wasteful number, since it uses less digits than its factorization.

72156032207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37213297.

The product of its (nonzero) digits is 35280, while the sum is 35.

The spelling of 72156032207 in words is "seventy-two billion, one hundred fifty-six million, thirty-two thousand, two hundred seven".