72067066 has 8 divisors (see below), whose sum is σ = 108158400. Its totient is φ = 36014268.

The previous prime is 72067043. The next prime is 72067067. The reversal of 72067066 is 66076027.

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 (72067067) 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, 4386 + ... + 12781.

It is an arithmetic number, because the mean of its divisors is an integer number (13519800).

Almost surely, 2^72067066 is an apocalyptic number.

72067066 is a deficient number, since it is larger than the sum of its proper divisors (36091334).

72067066 is a wasteful number, since it uses less digits than its factorization.

72067066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19268.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 72067066 is about 8489.2323563441. The cubic root of 72067066 is about 416.1458938786.

The spelling of 72067066 in words is "seventy-two million, sixty-seven thousand, sixty-six".