72641066 has 8 divisors (see below), whose sum is σ = 114696480. Its totient is φ = 34408908.

The previous prime is 72641011. The next prime is 72641071. The reversal of 72641066 is 66014627.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955766 + ... + 955841.

It is an arithmetic number, because the mean of its divisors is an integer number (14337060).

Almost surely, 2^72641066 is an apocalyptic number.

72641066 is a deficient number, since it is larger than the sum of its proper divisors (42055414).

72641066 is a wasteful number, since it uses less digits than its factorization.

72641066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911628.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 72641066 is about 8522.9728381592. The cubic root of 72641066 is about 417.2478135648.

The spelling of 72641066 in words is "seventy-two million, six hundred forty-one thousand, sixty-six".