20566035471 has 8 divisors (see below), whose sum is σ = 27585581184. Its totient is φ = 13628590040.

The previous prime is 20566035467. The next prime is 20566035509. The reversal of 20566035471 is 17453066502.

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

It is a cyclic number.

It is not a de Polignac number, because 20566035471 - 2² = 20566035467 is a prime.

It is a super-3 number, since 3×20566035471³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20566035401) 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 7 ways as a sum of consecutive naturals, for example, 20524485 + ... + 20525486.

It is an arithmetic number, because the mean of its divisors is an integer number (3448197648).

Almost surely, 2^20566035471 is an apocalyptic number.

20566035471 is a deficient number, since it is larger than the sum of its proper divisors (7019545713).

20566035471 is a wasteful number, since it uses less digits than its factorization.

20566035471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41050141.

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 20566035471 in words is "twenty billion, five hundred sixty-six million, thirty-five thousand, four hundred seventy-one".