20354102251604 has 12 divisors (see below), whose sum is σ = 38857831571328. Its totient is φ = 9251864659800.

The previous prime is 20354102251541. The next prime is 20354102251627. The reversal of 20354102251604 is 40615220145302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231296616452 + ... + 231296616539.

It is an arithmetic number, because the mean of its divisors is an integer number (3238152630944).

Almost surely, 2^{20354102251604} is an apocalyptic number.

It is an amenable number.

20354102251604 is a deficient number, since it is larger than the sum of its proper divisors (18503729319724).

20354102251604 is a wasteful number, since it uses less digits than its factorization.

20354102251604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462593233006 (or 462593233004 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 20354102251604 its reverse (40615220145302), we get a palindrome (60969322396906).

The spelling of 20354102251604 in words is "twenty trillion, three hundred fifty-four billion, one hundred two million, two hundred fifty-one thousand, six hundred four".