66346016 has 24 divisors (see below), whose sum is σ = 142493904. Its totient is φ = 30157120.

The previous prime is 66346009. The next prime is 66346039. The reversal of 66346016 is 61064366.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 93890 + ... + 94593.

It is an arithmetic number, because the mean of its divisors is an integer number (5937246).

Almost surely, 2^66346016 is an apocalyptic number.

It is an amenable number.

66346016 is an abundant number, since it is smaller than the sum of its proper divisors (76147888).

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

66346016 is a wasteful number, since it uses less digits than its factorization.

66346016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188504 (or 188496 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 66346016 is about 8145.3063785225. The cubic root of 66346016 is about 404.8290006146.

The spelling of 66346016 in words is "sixty-six million, three hundred forty-six thousand, sixteen".