66112156622 has 4 divisors (see below), whose sum is σ = 99168234936. Its totient is φ = 33056078310.

The previous prime is 66112156619. The next prime is 66112156633. The reversal of 66112156622 is 22665121166.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16528039154 + ... + 16528039157.

It is an arithmetic number, because the mean of its divisors is an integer number (24792058734).

Almost surely, 2^66112156622 is an apocalyptic number.

66112156622 is a deficient number, since it is larger than the sum of its proper divisors (33056078314).

66112156622 is a wasteful number, since it uses less digits than its factorization.

66112156622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33056078313.

The product of its digits is 51840, while the sum is 38.

Adding to 66112156622 its reverse (22665121166), we get a palindrome (88777277788).

The spelling of 66112156622 in words is "sixty-six billion, one hundred twelve million, one hundred fifty-six thousand, six hundred twenty-two".