66141522 has 40 divisors (see below), whose sum is σ = 148674636. Its totient is φ = 21977568.

The previous prime is 66141521. The next prime is 66141557. The reversal of 66141522 is 22514166.

It can be written as a sum of positive squares in 2 ways, for example, as 65755881 + 385641 = 8109^2 + 621^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (66141521) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 89868 + ... + 90600.

Almost surely, 2^66141522 is an apocalyptic number.

66141522 is an abundant number, since it is smaller than the sum of its proper divisors (82533114).

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

66141522 is a wasteful number, since it uses less digits than its factorization.

66141522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304 (or 1295 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 66141522 is about 8132.7438174333. The cubic root of 66141522 is about 404.4126465416.

Adding to 66141522 its reverse (22514166), we get a palindrome (88655688).

The spelling of 66141522 in words is "sixty-six million, one hundred forty-one thousand, five hundred twenty-two".