220437389693 has 8 divisors (see below), whose sum is σ = 226403903328. Its totient is φ = 214471336464.

The previous prime is 220437389681. The next prime is 220437389717. The reversal of 220437389693 is 396983734022.

It is a happy number.

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 220437389693 - 2⁴ = 220437389677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220437380693) 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, 999530 + ... + 1199972.

It is an arithmetic number, because the mean of its divisors is an integer number (28300487916).

Almost surely, 2^220437389693 is an apocalyptic number.

It is an amenable number.

220437389693 is a deficient number, since it is larger than the sum of its proper divisors (5966513635).

220437389693 is a wasteful number, since it uses less digits than its factorization.

220437389693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230203.

The product of its (nonzero) digits is 11757312, while the sum is 56.

The spelling of 220437389693 in words is "two hundred twenty billion, four hundred thirty-seven million, three hundred eighty-nine thousand, six hundred ninety-three".