20454496418 has 8 divisors (see below), whose sum is σ = 30682356012. Its totient is φ = 10227044416.

The previous prime is 20454496331. The next prime is 20454496423. The reversal of 20454496418 is 81469445402.

It can be written as a sum of positive squares in 2 ways, for example, as 20381274169 + 73222249 = 142763^2 + 8557^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121646 + ... + 236022.

Almost surely, 2^20454496418 is an apocalyptic number.

20454496418 is a deficient number, since it is larger than the sum of its proper divisors (10227859594).

20454496418 is a wasteful number, since it uses less digits than its factorization.

20454496418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203796.

The product of its (nonzero) digits is 1105920, while the sum is 47.

The spelling of 20454496418 in words is "twenty billion, four hundred fifty-four million, four hundred ninety-six thousand, four hundred eighteen".