20005452154 has 16 divisors (see below), whose sum is σ = 30132051840. Its totient is φ = 9961460080.

The previous prime is 20005452149. The next prime is 20005452161. The reversal of 20005452154 is 45125450002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3142827 + ... + 3149185.

It is an arithmetic number, because the mean of its divisors is an integer number (1883253240).

Almost surely, 2^20005452154 is an apocalyptic number.

20005452154 is a deficient number, since it is larger than the sum of its proper divisors (10126599686).

20005452154 is a wasteful number, since it uses less digits than its factorization.

20005452154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12605.

The product of its (nonzero) digits is 8000, while the sum is 28.

The spelling of 20005452154 in words is "twenty billion, five million, four hundred fifty-two thousand, one hundred fifty-four".