66959522 has 8 divisors (see below), whose sum is σ = 114787776. Its totient is φ = 28696932.

The previous prime is 66959479. The next prime is 66959527. The reversal of 66959522 is 22595966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66959527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2391398 + ... + 2391425.

It is an arithmetic number, because the mean of its divisors is an integer number (14348472).

Almost surely, 2^66959522 is an apocalyptic number.

66959522 is a deficient number, since it is larger than the sum of its proper divisors (47828254).

66959522 is a wasteful number, since it uses less digits than its factorization.

66959522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782832.

The product of its digits is 291600, while the sum is 44.

The square root of 66959522 is about 8182.8798109223. The cubic root of 66959522 is about 406.0730008589.

The spelling of 66959522 in words is "sixty-six million, nine hundred fifty-nine thousand, five hundred twenty-two".