66051253422 has 96 divisors (see below), whose sum is σ = 180574168320. Its totient is φ = 16949439360.

The previous prime is 66051253381. The next prime is 66051253439. The reversal of 66051253422 is 22435215066.

66051253422 is a `hidden beast` number, since 6 + 605 + 1 + 2 + 5 + 3 + 42 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 172047 + ... + 402122.

It is an arithmetic number, because the mean of its divisors is an integer number (1880980920).

Almost surely, 2^66051253422 is an apocalyptic number.

66051253422 is an abundant number, since it is smaller than the sum of its proper divisors (114522914898).

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

66051253422 is a wasteful number, since it uses less digits than its factorization.

66051253422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574278 (or 574275 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 66051253422 its reverse (22435215066), we get a palindrome (88486468488).

The spelling of 66051253422 in words is "sixty-six billion, fifty-one million, two hundred fifty-three thousand, four hundred twenty-two".