66267492 has 12 divisors (see below), whose sum is σ = 154624176. Its totient is φ = 22089160.

The previous prime is 66267473. The next prime is 66267493. The reversal of 66267492 is 29476266.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (66267493) 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, 2761134 + ... + 2761157.

It is an arithmetic number, because the mean of its divisors is an integer number (12885348).

Almost surely, 2^66267492 is an apocalyptic number.

It is an amenable number.

66267492 is an abundant number, since it is smaller than the sum of its proper divisors (88356684).

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

66267492 is a wasteful number, since it uses less digits than its factorization.

66267492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5522298 (or 5522296 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 66267492 is about 8140.4847521508. The cubic root of 66267492 is about 404.6692254246.

The spelling of 66267492 in words is "sixty-six million, two hundred sixty-seven thousand, four hundred ninety-two".