163337652851044 has 81 divisors (see below), whose sum is σ = 353225261418393. Its totient is φ = 65882868352896.

The previous prime is 163337652851039. The next prime is 163337652851053. The reversal of 163337652851044 is 440158256733361.

The square root of 163337652851044 is 12780362.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 127165992704100 + 36171660146944 = 11276790^2 + 6014288^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 163337652851044.

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 26 ways as a sum of consecutive naturals, for example, 3041699307 + ... + 3041753005.

Almost surely, 2^{163337652851044} is an apocalyptic number.

163337652851044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

163337652851044 is the 12780362-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163337652851044

163337652851044 is an abundant number, since it is smaller than the sum of its proper divisors (189887608567349).

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

163337652851044 is an frugal number, since it uses more digits than its factorization.

163337652851044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107450 (or 53725 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 58.

The spelling of 163337652851044 in words is "one hundred sixty-three trillion, three hundred thirty-seven billion, six hundred fifty-two million, eight hundred fifty-one thousand, forty-four".