66652475903 has 8 divisors (see below), whose sum is σ = 71781948000. Its totient is φ = 61523340768.

The previous prime is 66652475843. The next prime is 66652475917. The reversal of 66652475903 is 30957425666.

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 66652475903 - 2⁸ = 66652475647 is a prime.

It is a super-3 number, since 3×66652475903³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66652475303) 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, 453998 + ... + 582596.

It is an arithmetic number, because the mean of its divisors is an integer number (8972743500).

Almost surely, 2^66652475903 is an apocalyptic number.

66652475903 is a deficient number, since it is larger than the sum of its proper divisors (5129472097).

66652475903 is a wasteful number, since it uses less digits than its factorization.

66652475903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168481.

The product of its (nonzero) digits is 8164800, while the sum is 53.

The spelling of 66652475903 in words is "sixty-six billion, six hundred fifty-two million, four hundred seventy-five thousand, nine hundred three".