220331893649 has 8 divisors (see below), whose sum is σ = 251944226688. Its totient is φ = 188753647680.

The previous prime is 220331893631. The next prime is 220331893669. The reversal of 220331893649 is 946398133022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220331893649 - 2¹² = 220331889553 is a prime.

It is a super-2 number, since 2×220331893649² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 220331893597 and 220331893606.

It is not an unprimeable number, because it can be changed into a prime (220331893669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8507912 + ... + 8533769.

It is an arithmetic number, because the mean of its divisors is an integer number (31493028336).

Almost surely, 2^220331893649 is an apocalyptic number.

It is an amenable number.

220331893649 is a deficient number, since it is larger than the sum of its proper divisors (31612333039).

220331893649 is a wasteful number, since it uses less digits than its factorization.

220331893649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17043535.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 220331893649 in words is "two hundred twenty billion, three hundred thirty-one million, eight hundred ninety-three thousand, six hundred forty-nine".