23154040000000 has 640 divisors, whose sum is σ = 71184633391872. Its totient is φ = 7326720000000.

The previous prime is 23154039999991. The next prime is 23154040000033. The reversal of 23154040000000 is 4045132.

It is a tau number, because it is divible by the number of its divisors (640).

It is a super-2 number, since 2×23154040000000² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3639996820 + ... + 3640003180.

Almost surely, 2^{23154040000000} is an apocalyptic number.

23154040000000 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 23154040000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35592316695936).

23154040000000 is an abundant number, since it is smaller than the sum of its proper divisors (48030593391872).

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

23154040000000 is an frugal number, since it uses more digits than its factorization.

23154040000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6434 (or 6388 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 23154040000000 its reverse (4045132), we get a palindrome (23154044045132).

The spelling of 23154040000000 in words is "twenty-three trillion, one hundred fifty-four billion, forty million", and thus it is an aban number.