20537073502 has 64 divisors (see below), whose sum is σ = 35433842688. Its totient is φ = 8842176000.

The previous prime is 20537073467. The next prime is 20537073511.

20537073502 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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, 6819177 + ... + 6822187.

It is an arithmetic number, because the mean of its divisors is an integer number (553653792).

Almost surely, 2^20537073502 is an apocalyptic number.

20537073502 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20537073502 is a deficient number, since it is larger than the sum of its proper divisors (14896769186).

20537073502 is a wasteful number, since it uses less digits than its factorization.

20537073502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3265.

The product of its (nonzero) digits is 44100, while the sum is 34.

It can be divided in two parts, 205370 and 73502, that added together give a palindrome (278872).

The spelling of 20537073502 in words is "twenty billion, five hundred thirty-seven million, seventy-three thousand, five hundred two".