66437016 has 16 divisors (see below), whose sum is σ = 166092600. Its totient is φ = 22145664.

The previous prime is 66437011. The next prime is 66437023. The reversal of 66437016 is 61073466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66437011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1384081 + ... + 1384128.

Almost surely, 2^66437016 is an apocalyptic number.

It is an amenable number.

66437016 is an abundant number, since it is smaller than the sum of its proper divisors (99655584).

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

66437016 is a wasteful number, since it uses less digits than its factorization.

66437016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768218 (or 2768214 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 66437016 is about 8150.8905034971. The cubic root of 66437016 is about 405.0140034786.

The spelling of 66437016 in words is "sixty-six million, four hundred thirty-seven thousand, sixteen".