20459148554 has 32 divisors (see below), whose sum is σ = 35598818304. Its totient is φ = 8740765440.

The previous prime is 20459148553. The next prime is 20459148583. The reversal of 20459148554 is 45584195402.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20459148499 and 20459148508.

It is not an unprimeable number, because it can be changed into a prime (20459148553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 533279 + ... + 570354.

It is an arithmetic number, because the mean of its divisors is an integer number (1112463072).

Almost surely, 2^20459148554 is an apocalyptic number.

20459148554 is a deficient number, since it is larger than the sum of its proper divisors (15139669750).

20459148554 is a wasteful number, since it uses less digits than its factorization.

20459148554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103702.

The product of its (nonzero) digits is 1152000, while the sum is 47.

The spelling of 20459148554 in words is "twenty billion, four hundred fifty-nine million, one hundred forty-eight thousand, five hundred fifty-four".