533499966 has 32 divisors (see below), whose sum is σ = 1217602080. Its totient is φ = 173026368.

The previous prime is 533499959. The next prime is 533499977. The reversal of 533499966 is 669994335.

533499966 is a `hidden beast` number, since 533 + 49 + 9 + 9 + 66 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131511 + ... + 135506.

It is an arithmetic number, because the mean of its divisors is an integer number (38050065).

Almost surely, 2^533499966 is an apocalyptic number.

533499966 is an abundant number, since it is smaller than the sum of its proper divisors (684102114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

533499966 is a wasteful number, since it uses less digits than its factorization.

533499966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267065 (or 267059 counting only the distinct ones).

The product of its digits is 4723920, while the sum is 54.

The square root of 533499966 is about 23097.6181888956. The cubic root of 533499966 is about 811.0447150769.

The spelling of 533499966 in words is "five hundred thirty-three million, four hundred ninety-nine thousand, nine hundred sixty-six".