66403334 has 4 divisors (see below), whose sum is σ = 99605004. Its totient is φ = 33201666.

The previous prime is 66403321. The next prime is 66403349. The reversal of 66403334 is 43330466.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 66403297 and 66403306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16600832 + ... + 16600835.

It is an arithmetic number, because the mean of its divisors is an integer number (24901251).

Almost surely, 2^66403334 is an apocalyptic number.

66403334 is a deficient number, since it is larger than the sum of its proper divisors (33201670).

66403334 is a wasteful number, since it uses less digits than its factorization.

66403334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33201669.

The product of its (nonzero) digits is 15552, while the sum is 29.

The square root of 66403334 is about 8148.8240869465. The cubic root of 66403334 is about 404.9455477267.

The spelling of 66403334 in words is "sixty-six million, four hundred three thousand, three hundred thirty-four".