66064003 has 8 divisors (see below), whose sum is σ = 67087872. Its totient is φ = 65048256.

The previous prime is 66063983. The next prime is 66064043. The reversal of 66064003 is 30046066.

It is a happy number.

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 66064003 - 2¹³ = 66055811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66064043) 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, 15501 + ... + 19297.

It is an arithmetic number, because the mean of its divisors is an integer number (8385984).

Almost surely, 2^66064003 is an apocalyptic number.

66064003 is a deficient number, since it is larger than the sum of its proper divisors (1023869).

66064003 is a wasteful number, since it uses less digits than its factorization.

66064003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4061.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 66064003 is about 8127.9765624662. The cubic root of 66064003 is about 404.2545919216.

It can be divided in two parts, 6606 and 4003, that added together give a square (10609 = 103²).

The spelling of 66064003 in words is "sixty-six million, sixty-four thousand, three".