53197661166 has 128 divisors (see below), whose sum is σ = 122272174080. Its totient is φ = 15314227200.

The previous prime is 53197661159. The next prime is 53197661189. The reversal of 53197661166 is 66116679135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8699326 + ... + 8705438.

It is an arithmetic number, because the mean of its divisors is an integer number (955251360).

Almost surely, 2^53197661166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53197661166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61136087040).

53197661166 is an abundant number, since it is smaller than the sum of its proper divisors (69074512914).

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

53197661166 is a wasteful number, since it uses less digits than its factorization.

53197661166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6282.

The product of its digits is 1224720, while the sum is 51.

The spelling of 53197661166 in words is "fifty-three billion, one hundred ninety-seven million, six hundred sixty-one thousand, one hundred sixty-six".