66465376 has 36 divisors (see below), whose sum is σ = 139023108. Its totient is φ = 31273472.

The previous prime is 66465367. The next prime is 66465391. The reversal of 66465376 is 67356466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5655 + ... + 12841.

It is an arithmetic number, because the mean of its divisors is an integer number (3861753).

Almost surely, 2^66465376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66465376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69511554).

66465376 is an abundant number, since it is smaller than the sum of its proper divisors (72557732).

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

66465376 is a wasteful number, since it uses less digits than its factorization.

66465376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7231 (or 7206 counting only the distinct ones).

The product of its digits is 544320, while the sum is 43.

The square root of 66465376 is about 8152.6300050965. The cubic root of 66465376 is about 405.0716247860.

The spelling of 66465376 in words is "sixty-six million, four hundred sixty-five thousand, three hundred seventy-six".