221150063778 has 16 divisors (see below), whose sum is σ = 505485860160. Its totient is φ = 63185732496.

The previous prime is 221150063723. The next prime is 221150063803. The reversal of 221150063778 is 877360051122.

221150063778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 5265477709 = 221150063778 / (2 + 2 + 1 + 1 + 5 + 0 + 0 + 6 + 3 + 7 + 7 + 8).

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 7 ways as a sum of consecutive naturals, for example, 2632738813 + ... + 2632738896.

It is an arithmetic number, because the mean of its divisors is an integer number (31592866260).

Almost surely, 2^221150063778 is an apocalyptic number.

221150063778 is an abundant number, since it is smaller than the sum of its proper divisors (284335796382).

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

221150063778 is a wasteful number, since it uses less digits than its factorization.

221150063778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5265477721.

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 221150063778 in words is "two hundred twenty-one billion, one hundred fifty million, sixty-three thousand, seven hundred seventy-eight".