23154415505 has 8 divisors (see below), whose sum is σ = 29922629352. Its totient is φ = 17098645248.

The previous prime is 23154415489. The next prime is 23154415517. The reversal of 23154415505 is 50551445132.

It can be written as a sum of positive squares in 4 ways, for example, as 1579506049 + 21574909456 = 39743^2 + 146884^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23154415505 - 2⁴ = 23154415489 is a prime.

It is a super-2 number, since 2×23154415505² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178110824 + ... + 178110953.

It is an arithmetic number, because the mean of its divisors is an integer number (3740328669).

Almost surely, 2^23154415505 is an apocalyptic number.

It is an amenable number.

23154415505 is a deficient number, since it is larger than the sum of its proper divisors (6768213847).

23154415505 is a wasteful number, since it uses less digits than its factorization.

23154415505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356221795.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 23154415505 in words is "twenty-three billion, one hundred fifty-four million, four hundred fifteen thousand, five hundred five".