66423237322603 has 8 divisors (see below), whose sum is σ = 75929442098400. Its totient is φ = 56921325264960.

The previous prime is 66423237322583. The next prime is 66423237322633. The reversal of 66423237322603 is 30622373232466.

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 66423237322603 - 2²⁵ = 66423203768171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66423237322633) 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, 1073146378 + ... + 1073208271.

It is an arithmetic number, because the mean of its divisors is an integer number (9491180262300).

Almost surely, 2^{66423237322603} is an apocalyptic number.

66423237322603 is a deficient number, since it is larger than the sum of its proper divisors (9506204775797).

66423237322603 is a wasteful number, since it uses less digits than its factorization.

66423237322603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146359077.

The product of its (nonzero) digits is 7838208, while the sum is 49.

The spelling of 66423237322603 in words is "sixty-six trillion, four hundred twenty-three billion, two hundred thirty-seven million, three hundred twenty-two thousand, six hundred three".