52170621566 has 8 divisors (see below), whose sum is σ = 89435351280. Its totient is φ = 22358837808.

The previous prime is 52170621499. The next prime is 52170621583. The reversal of 52170621566 is 66512607125.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1863236471 + ... + 1863236498.

It is an arithmetic number, because the mean of its divisors is an integer number (11179418910).

Almost surely, 2^52170621566 is an apocalyptic number.

52170621566 is a deficient number, since it is larger than the sum of its proper divisors (37264729714).

52170621566 is a wasteful number, since it uses less digits than its factorization.

52170621566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3726472978.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 52170621566 in words is "fifty-two billion, one hundred seventy million, six hundred twenty-one thousand, five hundred sixty-six".