20897669230 has 8 divisors (see below), whose sum is σ = 37615804632. Its totient is φ = 8359067688.

The previous prime is 20897669189. The next prime is 20897669231. The reversal of 20897669230 is 3296679802.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20897669231) by changing a digit.

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, 1044883452 + ... + 1044883471.

It is an arithmetic number, because the mean of its divisors is an integer number (4701975579).

Almost surely, 2^20897669230 is an apocalyptic number.

20897669230 is a deficient number, since it is larger than the sum of its proper divisors (16718135402).

20897669230 is a wasteful number, since it uses less digits than its factorization.

20897669230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089766930.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 20897669230 in words is "twenty billion, eight hundred ninety-seven million, six hundred sixty-nine thousand, two hundred thirty".