20455424751 has 8 divisors (see below), whose sum is σ = 27403160704. Its totient is φ = 13572319320.

The previous prime is 20455424713. The next prime is 20455424753. The reversal of 20455424751 is 15742455402.

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

It is not a de Polignac number, because 20455424751 - 2⁶ = 20455424687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20455424753) 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, 16156891 + ... + 16158156.

It is an arithmetic number, because the mean of its divisors is an integer number (3425395088).

Almost surely, 2^20455424751 is an apocalyptic number.

20455424751 is a deficient number, since it is larger than the sum of its proper divisors (6947735953).

20455424751 is a wasteful number, since it uses less digits than its factorization.

20455424751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32315261.

The product of its (nonzero) digits is 224000, while the sum is 39.

The spelling of 20455424751 in words is "twenty billion, four hundred fifty-five million, four hundred twenty-four thousand, seven hundred fifty-one".