20606056533 has 8 divisors (see below), whose sum is σ = 30527491200. Its totient is φ = 13737371004.

The previous prime is 20606056519. The next prime is 20606056547. The reversal of 20606056533 is 33565060602.

20606056533 is a `hidden beast` number, since 2 + 0 + 6 + 0 + 60 + 565 + 33 = 666.

It is an interprime number because it is at equal distance from previous prime (20606056519) and next prime (20606056547).

It is not a de Polignac number, because 20606056533 - 2⁵ = 20606056501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20606056553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381593613 + ... + 381593666.

It is an arithmetic number, because the mean of its divisors is an integer number (3815936400).

Almost surely, 2^20606056533 is an apocalyptic number.

It is an amenable number.

20606056533 is a deficient number, since it is larger than the sum of its proper divisors (9921434667).

20606056533 is an equidigital number, since it uses as much as digits as its factorization.

20606056533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763187288 (or 763187282 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The spelling of 20606056533 in words is "twenty billion, six hundred six million, fifty-six thousand, five hundred thirty-three".