20667414228 has 36 divisors (see below), whose sum is σ = 48679193472. Its totient is φ = 6824708240.

The previous prime is 20667414227. The next prime is 20667414239. The reversal of 20667414228 is 82241476602.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20667414228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20667414227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62173 + ... + 212603.

Almost surely, 2^20667414228 is an apocalyptic number.

It is an amenable number.

20667414228 is an abundant number, since it is smaller than the sum of its proper divisors (28011779244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20667414228 is a wasteful number, since it uses less digits than its factorization.

20667414228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150652 (or 150543 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 20667414228 in words is "twenty billion, six hundred sixty-seven million, four hundred fourteen thousand, two hundred twenty-eight".