66450063 has 8 divisors (see below), whose sum is σ = 88643376. Its totient is φ = 44278400.

The previous prime is 66450061. The next prime is 66450067. The reversal of 66450063 is 36005466.

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 66450063 - 2¹ = 66450061 is a prime.

It is a super-2 number, since 2×66450063² = 8831221745407938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66450063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66450061) 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, 4183 + ... + 12263.

It is an arithmetic number, because the mean of its divisors is an integer number (11080422).

Almost surely, 2^66450063 is an apocalyptic number.

66450063 is a deficient number, since it is larger than the sum of its proper divisors (22193313).

66450063 is a wasteful number, since it uses less digits than its factorization.

66450063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10825.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 66450063 is about 8151.6908062070. The cubic root of 66450063 is about 405.0405141607.

The spelling of 66450063 in words is "sixty-six million, four hundred fifty thousand, sixty-three".