220474947771 has 24 divisors (see below), whose sum is σ = 343029036896. Its totient is φ = 135649987200.

The previous prime is 220474947767. The next prime is 220474947779. The reversal of 220474947771 is 177749474022.

220474947771 is a `hidden beast` number, since 2 + 20 + 47 + 49 + 477 + 71 = 666.

It is not a de Polignac number, because 220474947771 - 2² = 220474947767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220474947779) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 413946 + ... + 782496.

Almost surely, 2^220474947771 is an apocalyptic number.

220474947771 is a deficient number, since it is larger than the sum of its proper divisors (122554089125).

220474947771 is a wasteful number, since it uses less digits than its factorization.

220474947771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373683 (or 373680 counting only the distinct ones).

The product of its (nonzero) digits is 5531904, while the sum is 54.

The spelling of 220474947771 in words is "two hundred twenty billion, four hundred seventy-four million, nine hundred forty-seven thousand, seven hundred seventy-one".