66450356 has 12 divisors (see below), whose sum is σ = 132900768. Its totient is φ = 28478712.

The previous prime is 66450341. The next prime is 66450379. The reversal of 66450356 is 65305466.

66450356 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1186586 + ... + 1186641.

It is an arithmetic number, because the mean of its divisors is an integer number (11075064).

Almost surely, 2^66450356 is an apocalyptic number.

It is an amenable number.

66450356 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66450356 is a wasteful number, since it uses less digits than its factorization.

66450356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373238 (or 2373236 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 66450356 is about 8151.7087779189. The cubic root of 66450356 is about 405.0411094784.

The spelling of 66450356 in words is "sixty-six million, four hundred fifty thousand, three hundred fifty-six".