66522336 has 48 divisors (see below), whose sum is σ = 178890768. Its totient is φ = 21632000.

The previous prime is 66522331. The next prime is 66522347. The reversal of 66522336 is 63322566.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 66522297 and 66522306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66522331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4515 + ... + 12386.

It is an arithmetic number, because the mean of its divisors is an integer number (3726891).

Almost surely, 2^66522336 is an apocalyptic number.

It is an amenable number.

66522336 is an abundant number, since it is smaller than the sum of its proper divisors (112368432).

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

66522336 is a wasteful number, since it uses less digits than its factorization.

66522336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16955 (or 16947 counting only the distinct ones).

The product of its digits is 38880, while the sum is 33.

The square root of 66522336 is about 8156.1226082005. The cubic root of 66522336 is about 405.1873055269.

The spelling of 66522336 in words is "sixty-six million, five hundred twenty-two thousand, three hundred thirty-six".