20154230360 has 128 divisors (see below), whose sum is σ = 50232960000. Its totient is φ = 7216235520.

The previous prime is 20154230323. The next prime is 20154230377. The reversal of 20154230360 is 6303245102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19777931 + ... + 19778949.

It is an arithmetic number, because the mean of its divisors is an integer number (392445000).

Almost surely, 2^20154230360 is an apocalyptic number.

20154230360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20154230360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25116480000).

20154230360 is an abundant number, since it is smaller than the sum of its proper divisors (30078729640).

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

20154230360 is a wasteful number, since it uses less digits than its factorization.

20154230360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 20154230360 its reverse (6303245102), we get a palindrome (26457475462).

The spelling of 20154230360 in words is "twenty billion, one hundred fifty-four million, two hundred thirty thousand, three hundred sixty".