20604331254 has 32 divisors (see below), whose sum is σ = 44406109440. Its totient is φ = 6335858592.

The previous prime is 20604331207. The next prime is 20604331309. The reversal of 20604331254 is 45213340602.

It is a super-2 number, since 2×20604331254² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45727 + ... + 208085.

It is an arithmetic number, because the mean of its divisors is an integer number (1387690920).

Almost surely, 2^20604331254 is an apocalyptic number.

20604331254 is an abundant number, since it is smaller than the sum of its proper divisors (23801778186).

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

20604331254 is a wasteful number, since it uses less digits than its factorization.

20604331254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164004.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 20604331254 its reverse (45213340602), we get a palindrome (65817671856).

The spelling of 20604331254 in words is "twenty billion, six hundred four million, three hundred thirty-one thousand, two hundred fifty-four".