20510260413 has 8 divisors (see below), whose sum is σ = 27350292000. Its totient is φ = 13671867888.

The previous prime is 20510260369. The next prime is 20510260417. The reversal of 20510260413 is 31406201502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20510260413 - 2⁹ = 20510259901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20510260417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380263 + ... + 430836.

It is an arithmetic number, because the mean of its divisors is an integer number (3418786500).

Almost surely, 2^20510260413 is an apocalyptic number.

It is an amenable number.

20510260413 is a deficient number, since it is larger than the sum of its proper divisors (6840031587).

20510260413 is an equidigital number, since it uses as much as digits as its factorization.

20510260413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819531.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 20510260413 its reverse (31406201502), we get a palindrome (51916461915).

The spelling of 20510260413 in words is "twenty billion, five hundred ten million, two hundred sixty thousand, four hundred thirteen".