220417630672 has 20 divisors (see below), whose sum is σ = 427258506880. Its totient is φ = 110157370848.

The previous prime is 220417630639. The next prime is 220417630717. The reversal of 220417630672 is 276036714022.

It is a happy number.

It is a super-2 number, since 2×220417630672² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3179922 + ... + 3248497.

It is an arithmetic number, because the mean of its divisors is an integer number (21362925344).

Almost surely, 2^220417630672 is an apocalyptic number.

It is an amenable number.

220417630672 is a deficient number, since it is larger than the sum of its proper divisors (206840876208).

220417630672 is a wasteful number, since it uses less digits than its factorization.

220417630672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6430570 (or 6430564 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 220417630672 in words is "two hundred twenty billion, four hundred seventeen million, six hundred thirty thousand, six hundred seventy-two".