634366203562144 has 12 divisors (see below), whose sum is σ = 1248908463263034. Its totient is φ = 317183101781056.

The previous prime is 634366203562081. The next prime is 634366203562183. The reversal of 634366203562144 is 441265302663436.

It can be written as a sum of positive squares in only one way, i.e., 538147760752144 + 96218442810000 = 23198012^2 + 9809100^2 .

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 as a sum of consecutive naturals, namely, 9911971930627 + ... + 9911971930690.

Almost surely, 2^{634366203562144} is an apocalyptic number.

It is an amenable number.

634366203562144 is a deficient number, since it is larger than the sum of its proper divisors (614542259700890).

634366203562144 is a wasteful number, since it uses less digits than its factorization.

634366203562144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19823943861327 (or 19823943861319 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 55.

The spelling of 634366203562144 in words is "six hundred thirty-four trillion, three hundred sixty-six billion, two hundred three million, five hundred sixty-two thousand, one hundred forty-four".