20551348741 has 16 divisors (see below), whose sum is σ = 26105908608. Its totient is φ = 15711883200.

The previous prime is 20551348729. The next prime is 20551348757. The reversal of 20551348741 is 14784315502.

It is a cyclic number.

It is not a de Polignac number, because 20551348741 - 2¹⁹ = 20550824453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20551348694 and 20551348703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20551348711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2513850 + ... + 2522011.

It is an arithmetic number, because the mean of its divisors is an integer number (1631619288).

Almost surely, 2^20551348741 is an apocalyptic number.

It is an amenable number.

20551348741 is a deficient number, since it is larger than the sum of its proper divisors (5554559867).

20551348741 is a wasteful number, since it uses less digits than its factorization.

20551348741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5035932.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 20551348741 in words is "twenty billion, five hundred fifty-one million, three hundred forty-eight thousand, seven hundred forty-one".