20251126454644 has 24 divisors (see below), whose sum is σ = 35938887969600. Its totient is φ = 9982874885760.

The previous prime is 20251126454639. The next prime is 20251126454681. The reversal of 20251126454644 is 44645462115202.

It is a junction number, because it is equal to n+sod(n) for n = 20251126454594 and 20251126454603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74763847 + ... + 75034225.

It is an arithmetic number, because the mean of its divisors is an integer number (1497453665400).

Almost surely, 2^{20251126454644} is an apocalyptic number.

It is an amenable number.

20251126454644 is a deficient number, since it is larger than the sum of its proper divisors (15687761514956).

20251126454644 is a wasteful number, since it uses less digits than its factorization.

20251126454644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534183 (or 534181 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 46.

Adding to 20251126454644 its reverse (44645462115202), we get a palindrome (64896588569846).

The spelling of 20251126454644 in words is "twenty trillion, two hundred fifty-one billion, one hundred twenty-six million, four hundred fifty-four thousand, six hundred forty-four".