20920182093 has 20 divisors (see below), whose sum is σ = 31256425728. Its totient is φ = 13944427560.

The previous prime is 20920182043. The next prime is 20920182097. The reversal of 20920182093 is 39028102902.

It is not a de Polignac number, because 20920182093 - 2¹⁸ = 20919919949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20920182097) 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 19 ways as a sum of consecutive naturals, for example, 552148 + ... + 588818.

Almost surely, 2^20920182093 is an apocalyptic number.

It is an amenable number.

20920182093 is a deficient number, since it is larger than the sum of its proper divisors (10336243635).

20920182093 is an equidigital number, since it uses as much as digits as its factorization.

20920182093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43726 (or 43717 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

Adding to 20920182093 its reverse (39028102902), we get a palindrome (59948284995).

The spelling of 20920182093 in words is "twenty billion, nine hundred twenty million, one hundred eighty-two thousand, ninety-three".