20455441345 has 16 divisors (see below), whose sum is σ = 25619058432. Its totient is φ = 15649627840.

The previous prime is 20455441339. The next prime is 20455441351. The reversal of 20455441345 is 54314455402.

It is an interprime number because it is at equal distance from previous prime (20455441339) and next prime (20455441351).

It is not a de Polignac number, because 20455441345 - 2¹¹ = 20455439297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 644724 + ... + 675706.

It is an arithmetic number, because the mean of its divisors is an integer number (1601191152).

Almost surely, 2^20455441345 is an apocalyptic number.

It is an amenable number.

20455441345 is a deficient number, since it is larger than the sum of its proper divisors (5163617087).

20455441345 is a wasteful number, since it uses less digits than its factorization.

20455441345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36752.

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 20455441345 its reverse (54314455402), we get a palindrome (74769896747).

The spelling of 20455441345 in words is "twenty billion, four hundred fifty-five million, four hundred forty-one thousand, three hundred forty-five".