23154151545 has 120 divisors (see below), whose sum is σ = 49288636800. Its totient is φ = 10026773568.

The previous prime is 23154151541. The next prime is 23154151547. The reversal of 23154151545 is 54515145132.

23154151545 is a `hidden beast` number, since 23 + 1 + 5 + 41 + 51 + 545 = 666.

It is not a de Polignac number, because 23154151545 - 2² = 23154151541 is a prime.

It is a super-2 number, since 2×23154151545² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23154151541) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2047216 + ... + 2058494.

It is an arithmetic number, because the mean of its divisors is an integer number (410738640).

Almost surely, 2^23154151545 is an apocalyptic number.

It is an amenable number.

23154151545 is an abundant number, since it is smaller than the sum of its proper divisors (26134485255).

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

23154151545 is a wasteful number, since it uses less digits than its factorization.

23154151545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11337 (or 11313 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

Adding to 23154151545 its reverse (54515145132), we get a palindrome (77669296677).

The spelling of 23154151545 in words is "twenty-three billion, one hundred fifty-four million, one hundred fifty-one thousand, five hundred forty-five".