66229254 has 48 divisors (see below), whose sum is σ = 176615712. Its totient is φ = 17466624.

The previous prime is 66229253. The next prime is 66229271. The reversal of 66229254 is 45292266.

66229254 is a `hidden beast` number, since 6 + 622 + 9 + 25 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66229253) 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, 18579 + ... + 21854.

It is an arithmetic number, because the mean of its divisors is an integer number (3679494).

Almost surely, 2^66229254 is an apocalyptic number.

66229254 is an abundant number, since it is smaller than the sum of its proper divisors (110386458).

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

66229254 is a wasteful number, since it uses less digits than its factorization.

66229254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40461 (or 40458 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 66229254 is about 8138.1357816149. The cubic root of 66229254 is about 404.5913756948.

It can be divided in two parts, 6622 and 9254, that added together give a square (15876 = 126²).

The spelling of 66229254 in words is "sixty-six million, two hundred twenty-nine thousand, two hundred fifty-four".