66105013622 has 8 divisors (see below), whose sum is σ = 99470321136. Its totient is φ = 32948239912.

The previous prime is 66105013609. The next prime is 66105013627. The reversal of 66105013622 is 22631050166.

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

It is a super-3 number, since 3×66105013622³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66105013627) 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, 52132658 + ... + 52133925.

It is an arithmetic number, because the mean of its divisors is an integer number (12433790142).

Almost surely, 2^66105013622 is an apocalyptic number.

66105013622 is a deficient number, since it is larger than the sum of its proper divisors (33365307514).

66105013622 is a wasteful number, since it uses less digits than its factorization.

66105013622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104266902.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 66105013622 its reverse (22631050166), we get a palindrome (88736063788).

The spelling of 66105013622 in words is "sixty-six billion, one hundred five million, thirteen thousand, six hundred twenty-two".