66410738 has 32 divisors (see below), whose sum is σ = 111767040. Its totient is φ = 29410560.

The previous prime is 66410737. The next prime is 66410741. The reversal of 66410738 is 83701466.

It is a super-2 number, since 2×66410738² = 8820772243409288, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66410698 and 66410707.

It is not an unprimeable number, because it can be changed into a prime (66410737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143828 + ... + 144288.

It is an arithmetic number, because the mean of its divisors is an integer number (3492720).

Almost surely, 2^66410738 is an apocalyptic number.

66410738 is a deficient number, since it is larger than the sum of its proper divisors (45356302).

66410738 is a wasteful number, since it uses less digits than its factorization.

66410738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 66410738 is about 8149.2783729604. The cubic root of 66410738 is about 404.9605977010.

The spelling of 66410738 in words is "sixty-six million, four hundred ten thousand, seven hundred thirty-eight".