20533180047 has 8 divisors (see below), whose sum is σ = 27752608944. Its totient is φ = 13501268928.

The previous prime is 20533180033. The next prime is 20533180067. The reversal of 20533180047 is 74008133502.

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

It is not a de Polignac number, because 20533180047 - 2⁶ = 20533179983 is a prime.

It is a super-2 number, since 2×20533180047² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20533180027) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 46879188 + ... + 46879625.

It is an arithmetic number, because the mean of its divisors is an integer number (3469076118).

Almost surely, 2^20533180047 is an apocalyptic number.

20533180047 is a deficient number, since it is larger than the sum of its proper divisors (7219428897).

20533180047 is an equidigital number, since it uses as much as digits as its factorization.

20533180047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93758889.

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 20533180047 in words is "twenty billion, five hundred thirty-three million, one hundred eighty thousand, forty-seven".