20064611553 has 32 divisors (see below), whose sum is σ = 33293644800. Its totient is φ = 10487486016.

The previous prime is 20064611551. The next prime is 20064611557. The reversal of 20064611553 is 35511646002.

It is not a de Polignac number, because 20064611553 - 2¹ = 20064611551 is a prime.

It is a super-3 number, since 3×20064611553³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20064611551) 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, 855451 + ... + 878592.

It is an arithmetic number, because the mean of its divisors is an integer number (1040426400).

Almost surely, 2^20064611553 is an apocalyptic number.

It is an amenable number.

20064611553 is a deficient number, since it is larger than the sum of its proper divisors (13229033247).

20064611553 is a wasteful number, since it uses less digits than its factorization.

20064611553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734101.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 20064611553 in words is "twenty billion, sixty-four million, six hundred eleven thousand, five hundred fifty-three".