72067212166 has 8 divisors (see below), whose sum is σ = 108108760824. Its totient is φ = 36030958560.

The previous prime is 72067212163. The next prime is 72067212193. The reversal of 72067212166 is 66121276027.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72067212163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1289560 + ... + 1344283.

It is an arithmetic number, because the mean of its divisors is an integer number (13513595103).

Almost surely, 2^72067212166 is an apocalyptic number.

72067212166 is a deficient number, since it is larger than the sum of its proper divisors (36041548658).

72067212166 is a wasteful number, since it uses less digits than its factorization.

72067212166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647526.

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

The spelling of 72067212166 in words is "seventy-two billion, sixty-seven million, two hundred twelve thousand, one hundred sixty-six".