66274902 has 32 divisors (see below), whose sum is σ = 148284000. Its totient is φ = 21940704.

The previous prime is 66274867. The next prime is 66274909. The reversal of 66274902 is 20947266.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66274909) 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, 3928 + ... + 12164.

It is an arithmetic number, because the mean of its divisors is an integer number (4633875).

Almost surely, 2^66274902 is an apocalyptic number.

66274902 is an abundant number, since it is smaller than the sum of its proper divisors (82009098).

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

66274902 is a wasteful number, since it uses less digits than its factorization.

66274902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8397 (or 8391 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 66274902 is about 8140.9398720295. The cubic root of 66274902 is about 404.6843081704.

It can be divided in two parts, 66274 and 902, that added together give a palindrome (67176).

The spelling of 66274902 in words is "sixty-six million, two hundred seventy-four thousand, nine hundred two".