66675294 has 48 divisors (see below), whose sum is σ = 173796480. Its totient is φ = 18046800.

The previous prime is 66675293. The next prime is 66675317. The reversal of 66675294 is 49257666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66675293) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11532 + ... + 16319.

It is an arithmetic number, because the mean of its divisors is an integer number (3620760).

Almost surely, 2^66675294 is an apocalyptic number.

66675294 is an abundant number, since it is smaller than the sum of its proper divisors (107121186).

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

66675294 is a wasteful number, since it uses less digits than its factorization.

66675294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27885 (or 27882 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 66675294 is about 8165.4941062988. The cubic root of 66675294 is about 405.4976233451.

The spelling of 66675294 in words is "sixty-six million, six hundred seventy-five thousand, two hundred ninety-four".