66336450 has 24 divisors (see below), whose sum is σ = 164514768. Its totient is φ = 17689680.

The previous prime is 66336433. The next prime is 66336481. The reversal of 66336450 is 5463366.

It is a happy number.

It is a super-3 number, since 3×66336450³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220972 + ... + 221271.

It is an arithmetic number, because the mean of its divisors is an integer number (6854782).

Almost surely, 2^66336450 is an apocalyptic number.

66336450 is an abundant number, since it is smaller than the sum of its proper divisors (98178318).

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

66336450 is a wasteful number, since it uses less digits than its factorization.

66336450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442258 (or 442253 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 66336450 is about 8144.7191480124. The cubic root of 66336450 is about 404.8095431270.

The spelling of 66336450 in words is "sixty-six million, three hundred thirty-six thousand, four hundred fifty".