20063555313778 has 16 divisors (see below), whose sum is σ = 31679623800000. Its totient is φ = 9503691578352.

The previous prime is 20063555313743. The next prime is 20063555313793. The reversal of 20063555313778 is 87731355536002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095328 + ... + 6428596.

It is an arithmetic number, because the mean of its divisors is an integer number (1979976487500).

Almost surely, 2^{20063555313778} is an apocalyptic number.

20063555313778 is a deficient number, since it is larger than the sum of its proper divisors (11616068486222).

20063555313778 is a wasteful number, since it uses less digits than its factorization.

20063555313778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5432289.

The product of its (nonzero) digits is 15876000, while the sum is 55.

The spelling of 20063555313778 in words is "twenty trillion, sixty-three billion, five hundred fifty-five million, three hundred thirteen thousand, seven hundred seventy-eight".