220107781874 has 4 divisors (see below), whose sum is σ = 330161672814. Its totient is φ = 110053890936.

The previous prime is 220107781871. The next prime is 220107781879. The reversal of 220107781874 is 478187701022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 204116914849 + 15990867025 = 451793^2 + 126455^2 .

It is not an unprimeable number, because it can be changed into a prime (220107781871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55026945467 + ... + 55026945470.

Almost surely, 2^220107781874 is an apocalyptic number.

220107781874 is a deficient number, since it is larger than the sum of its proper divisors (110053890940).

220107781874 is a wasteful number, since it uses less digits than its factorization.

220107781874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110053890939.

The product of its (nonzero) digits is 351232, while the sum is 47.

The spelling of 220107781874 in words is "two hundred twenty billion, one hundred seven million, seven hundred eighty-one thousand, eight hundred seventy-four".