55963910818 has 8 divisors (see below), whose sum is σ = 88883858412. Its totient is φ = 26335958016.

The previous prime is 55963910813. The next prime is 55963910837. The reversal of 55963910818 is 81801936955.

It can be written as a sum of positive squares in 2 ways, for example, as 55678537369 + 285373449 = 235963^2 + 16893^2 .

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

It is not an unprimeable number, because it can be changed into a prime (55963910813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822998655 + ... + 822998722.

Almost surely, 2^55963910818 is an apocalyptic number.

55963910818 is a deficient number, since it is larger than the sum of its proper divisors (32919947594).

55963910818 is a wasteful number, since it uses less digits than its factorization.

55963910818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645997396.

The product of its (nonzero) digits is 2332800, while the sum is 55.

The spelling of 55963910818 in words is "fifty-five billion, nine hundred sixty-three million, nine hundred ten thousand, eight hundred eighteen".