23154151500 has 144 divisors (see below), whose sum is σ = 73108491456. Its totient is φ = 6168960000.

The previous prime is 23154151483. The next prime is 23154151541. The reversal of 23154151500 is 515145132.

23154151500 is a `hidden beast` number, since 2 + 3 + 1 + 5 + 4 + 151 + 500 = 666.

It is a super-2 number, since 2×23154151500² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9075225 + ... + 9077775.

Almost surely, 2^23154151500 is an apocalyptic number.

23154151500 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 23154151500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36554245728).

23154151500 is an abundant number, since it is smaller than the sum of its proper divisors (49954339956).

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

23154151500 is a wasteful number, since it uses less digits than its factorization.

23154151500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593 (or 4578 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 23154151500 its reverse (515145132), we get a palindrome (23669296632).

The spelling of 23154151500 in words is "twenty-three billion, one hundred fifty-four million, one hundred fifty-one thousand, five hundred".