20253152154 has 16 divisors (see below), whose sum is σ = 40527976320. Its totient is φ = 6747438720.

The previous prime is 20253152149. The next prime is 20253152189. The reversal of 20253152154 is 45125135202.

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, 890839 + ... + 913290.

It is an arithmetic number, because the mean of its divisors is an integer number (2532998520).

Almost surely, 2^20253152154 is an apocalyptic number.

20253152154 is an abundant number, since it is smaller than the sum of its proper divisors (20274824166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20253152154 is a wasteful number, since it uses less digits than its factorization.

20253152154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806005.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 20253152154 its reverse (45125135202), we get a palindrome (65378287356).

The spelling of 20253152154 in words is "twenty billion, two hundred fifty-three million, one hundred fifty-two thousand, one hundred fifty-four".