24155143420 has 48 divisors (see below), whose sum is σ = 52568883360. Its totient is φ = 9312187136.

The previous prime is 24155143367. The next prime is 24155143459. The reversal of 24155143420 is 2434155142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289554 + ... + 363526.

It is an arithmetic number, because the mean of its divisors is an integer number (1095185070).

Almost surely, 2^24155143420 is an apocalyptic number.

24155143420 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 24155143420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26284441680).

24155143420 is an abundant number, since it is smaller than the sum of its proper divisors (28413739940).

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

24155143420 is a wasteful number, since it uses less digits than its factorization.

24155143420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74574 (or 74572 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 24155143420 its reverse (2434155142), we get a palindrome (26589298562).

The spelling of 24155143420 in words is "twenty-four billion, one hundred fifty-five million, one hundred forty-three thousand, four hundred twenty".