66073946 has 8 divisors (see below), whose sum is σ = 99382080. Its totient is φ = 32946588.

The previous prime is 66073939. The next prime is 66073961. The reversal of 66073946 is 64937066.

It is a happy number.

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

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, 44276 + ... + 45743.

It is an arithmetic number, because the mean of its divisors is an integer number (12422760).

Almost surely, 2^66073946 is an apocalyptic number.

66073946 is a deficient number, since it is larger than the sum of its proper divisors (33308134).

66073946 is a wasteful number, since it uses less digits than its factorization.

66073946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90388.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 66073946 is about 8128.5881923001. The cubic root of 66073946 is about 404.2748717593.

The spelling of 66073946 in words is "sixty-six million, seventy-three thousand, nine hundred forty-six".