66523022 has 4 divisors (see below), whose sum is σ = 99784536. Its totient is φ = 33261510.

The previous prime is 66522997. The next prime is 66523043. The reversal of 66523022 is 22032566.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 66522982 and 66523000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16630754 + ... + 16630757.

It is an arithmetic number, because the mean of its divisors is an integer number (24946134).

Almost surely, 2^66523022 is an apocalyptic number.

66523022 is a deficient number, since it is larger than the sum of its proper divisors (33261514).

66523022 is a wasteful number, since it uses less digits than its factorization.

66523022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33261513.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 66523022 is about 8156.1646623888. The cubic root of 66523022 is about 405.1886983299.

Adding to 66523022 its reverse (22032566), we get a palindrome (88555588).

The spelling of 66523022 in words is "sixty-six million, five hundred twenty-three thousand, twenty-two".