20667353006 has 4 divisors (see below), whose sum is σ = 31001029512. Its totient is φ = 10333676502.

The previous prime is 20667352907. The next prime is 20667353011. The reversal of 20667353006 is 60035376602.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5166838250 + ... + 5166838253.

It is an arithmetic number, because the mean of its divisors is an integer number (7750257378).

Almost surely, 2^20667353006 is an apocalyptic number.

20667353006 is a deficient number, since it is larger than the sum of its proper divisors (10333676506).

20667353006 is a wasteful number, since it uses less digits than its factorization.

20667353006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10333676505.

The product of its (nonzero) digits is 136080, while the sum is 38.

The spelling of 20667353006 in words is "twenty billion, six hundred sixty-seven million, three hundred fifty-three thousand, six".