23146636065 has 32 divisors (see below), whose sum is σ = 42336362496. Its totient is φ = 10578548160.

The previous prime is 23146636021. The next prime is 23146636081. The reversal of 23146636065 is 56063664132.

It is a happy number.

It is not a de Polignac number, because 23146636065 - 2¹⁶ = 23146570529 is a prime.

It is a super-2 number, since 2×23146636065² (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 31 ways as a sum of consecutive naturals, for example, 404844 + ... + 458466.

It is an arithmetic number, because the mean of its divisors is an integer number (1323011328).

Almost surely, 2^23146636065 is an apocalyptic number.

It is an amenable number.

23146636065 is a deficient number, since it is larger than the sum of its proper divisors (19189726431).

23146636065 is a wasteful number, since it uses less digits than its factorization.

23146636065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57749.

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 23146636065 in words is "twenty-three billion, one hundred forty-six million, six hundred thirty-six thousand, sixty-five".