20455412774451 has 32 divisors (see below), whose sum is σ = 27578299694400. Its totient is φ = 13485079756800.

The previous prime is 20455412774431. The next prime is 20455412774501. The reversal of 20455412774451 is 15447721455402.

It is not a de Polignac number, because 20455412774451 - 2¹⁵ = 20455412741683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20455412774394 and 20455412774403.

It is not an unprimeable number, because it can be changed into a prime (20455412774431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1161636535 + ... + 1161654143.

It is an arithmetic number, because the mean of its divisors is an integer number (861821865450).

Almost surely, 2^{20455412774451} is an apocalyptic number.

20455412774451 is a deficient number, since it is larger than the sum of its proper divisors (7122886919949).

20455412774451 is a wasteful number, since it uses less digits than its factorization.

20455412774451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22279.

The product of its (nonzero) digits is 6272000, while the sum is 51.

The spelling of 20455412774451 in words is "twenty trillion, four hundred fifty-five billion, four hundred twelve million, seven hundred seventy-four thousand, four hundred fifty-one".