66457003 has 8 divisors (see below), whose sum is σ = 70156800. Its totient is φ = 62777448.

The previous prime is 66456991. The next prime is 66457031. The reversal of 66457003 is 30075466.

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

It is a cyclic number.

It is not a de Polignac number, because 66457003 - 2⁹ = 66456491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66457033) 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, 1950 + ... + 11692.

It is an arithmetic number, because the mean of its divisors is an integer number (8769600).

Almost surely, 2^66457003 is an apocalyptic number.

66457003 is a deficient number, since it is larger than the sum of its proper divisors (3699797).

66457003 is a wasteful number, since it uses less digits than its factorization.

66457003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10121.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 66457003 is about 8152.1164736527. The cubic root of 66457003 is about 405.0546143897.

The spelling of 66457003 in words is "sixty-six million, four hundred fifty-seven thousand, three".