66202169056 has 12 divisors (see below), whose sum is σ = 130335520392. Its totient is φ = 33101084512.

The previous prime is 66202169003. The next prime is 66202169057. The reversal of 66202169056 is 65096120266.

It is a super-2 number, since 2×66202169056² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66202169057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1034408860 + ... + 1034408923.

It is an arithmetic number, because the mean of its divisors is an integer number (10861293366).

Almost surely, 2^66202169056 is an apocalyptic number.

It is an amenable number.

66202169056 is a deficient number, since it is larger than the sum of its proper divisors (64133351336).

66202169056 is a wasteful number, since it uses less digits than its factorization.

66202169056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068817793 (or 2068817785 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 66202169056 in words is "sixty-six billion, two hundred two million, one hundred sixty-nine thousand, fifty-six".