20454110465 has 16 divisors (see below), whose sum is σ = 25358900736. Its totient is φ = 15821568000.

The previous prime is 20454110449. The next prime is 20454110483. The reversal of 20454110465 is 56401145402.

It is not a de Polignac number, because 20454110465 - 2⁴ = 20454110449 is a prime.

It is a Curzon 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, 121490 + ... + 235940.

It is an arithmetic number, because the mean of its divisors is an integer number (1584931296).

Almost surely, 2^20454110465 is an apocalyptic number.

It is an amenable number.

20454110465 is a deficient number, since it is larger than the sum of its proper divisors (4904790271).

20454110465 is a wasteful number, since it uses less digits than its factorization.

20454110465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115640.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 20454110465 its reverse (56401145402), we get a palindrome (76855255867).

The spelling of 20454110465 in words is "twenty billion, four hundred fifty-four million, one hundred ten thousand, four hundred sixty-five".