20533013153 has 32 divisors (see below), whose sum is σ = 21873933312. Its totient is φ = 19247155200.

The previous prime is 20533013147. The next prime is 20533013167. The reversal of 20533013153 is 35131033502.

It is a cyclic number.

It is not a de Polignac number, because 20533013153 - 2²⁰ = 20531964577 is a prime.

It is a super-4 number, since 4×20533013153⁴ (a number of 42 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (20533013143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65600525 + ... + 65600837.

It is an arithmetic number, because the mean of its divisors is an integer number (683560416).

Almost surely, 2^20533013153 is an apocalyptic number.

It is an amenable number.

20533013153 is a deficient number, since it is larger than the sum of its proper divisors (1340920159).

20533013153 is a wasteful number, since it uses less digits than its factorization.

20533013153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825.

The product of its (nonzero) digits is 4050, while the sum is 26.

Adding to 20533013153 its reverse (35131033502), we get a palindrome (55664046655).

The spelling of 20533013153 in words is "twenty billion, five hundred thirty-three million, thirteen thousand, one hundred fifty-three".