20542032264 has 32 divisors (see below), whose sum is σ = 55305472320. Its totient is φ = 6320625216.

The previous prime is 20542032241. The next prime is 20542032311. The reversal of 20542032264 is 46223024502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32919612 + ... + 32920235.

It is an arithmetic number, because the mean of its divisors is an integer number (1728296010).

Almost surely, 2^20542032264 is an apocalyptic number.

20542032264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20542032264 is an abundant number, since it is smaller than the sum of its proper divisors (34763440056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20542032264 is a wasteful number, since it uses less digits than its factorization.

20542032264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65839869 (or 65839865 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 20542032264 its reverse (46223024502), we get a palindrome (66765056766).

The spelling of 20542032264 in words is "twenty billion, five hundred forty-two million, thirty-two thousand, two hundred sixty-four".