20671055552 has 56 divisors (see below), whose sum is σ = 47117166624. Its totient is φ = 8814016512.

The previous prime is 20671055519. The next prime is 20671055557. The reversal of 20671055552 is 25555017602.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-3 number, since 3×20671055552³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20671055557) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28853 + ... + 205364.

Almost surely, 2^20671055552 is an apocalyptic number.

It is an amenable number.

20671055552 is an abundant number, since it is smaller than the sum of its proper divisors (26446111072).

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

20671055552 is a wasteful number, since it uses less digits than its factorization.

20671055552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234433 (or 234423 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 38.

It can be divided in two parts, 206710 and 55552, that added together give a palindrome (262262).

The spelling of 20671055552 in words is "twenty billion, six hundred seventy-one million, fifty-five thousand, five hundred fifty-two".