20067606656 has 32 divisors (see below), whose sum is σ = 42082568400. Its totient is φ = 9505707264.

The previous prime is 20067606593. The next prime is 20067606683. The reversal of 20067606656 is 65660676002.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4123310 + ... + 4128173.

Almost surely, 2^20067606656 is an apocalyptic number.

It is an amenable number.

20067606656 is an abundant number, since it is smaller than the sum of its proper divisors (22014961744).

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

20067606656 is an equidigital number, since it uses as much as digits as its factorization.

20067606656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8251516 (or 8251504 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 20067606656 in words is "twenty billion, sixty-seven million, six hundred six thousand, six hundred fifty-six".