66371073 has 8 divisors (see below), whose sum is σ = 88944768. Its totient is φ = 44022384.

The previous prime is 66371057. The next prime is 66371083. The reversal of 66371073 is 37017366.

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

It is not a de Polignac number, because 66371073 - 2⁴ = 66371057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66371083) 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, 55561 + ... + 56742.

It is an arithmetic number, because the mean of its divisors is an integer number (11118096).

Almost surely, 2^66371073 is an apocalyptic number.

It is an amenable number.

66371073 is a deficient number, since it is larger than the sum of its proper divisors (22573695).

66371073 is a wasteful number, since it uses less digits than its factorization.

66371073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112503.

The product of its (nonzero) digits is 15876, while the sum is 33.

The square root of 66371073 is about 8146.8443584004. The cubic root of 66371073 is about 404.8799583266.

The spelling of 66371073 in words is "sixty-six million, three hundred seventy-one thousand, seventy-three".