12501533365 has 8 divisors (see below), whose sum is σ = 15002714808. Its totient is φ = 10000643520.

The previous prime is 12501533347. The next prime is 12501533377. The reversal of 12501533365 is 56333510521.

It can be written as a sum of positive squares in 4 ways, for example, as 2448864196 + 10052669169 = 49486^2 + 100263^2 .

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

It is not a de Polignac number, because 12501533365 - 2²⁷ = 12367315637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12501533365.

It is a congruent 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, 36295 + ... + 162235.

It is an arithmetic number, because the mean of its divisors is an integer number (1875339351).

Almost surely, 2^12501533365 is an apocalyptic number.

It is an amenable number.

12501533365 is a deficient number, since it is larger than the sum of its proper divisors (2501181443).

12501533365 is a wasteful number, since it uses less digits than its factorization.

12501533365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145799.

The product of its (nonzero) digits is 40500, while the sum is 34.

The spelling of 12501533365 in words is "twelve billion, five hundred one million, five hundred thirty-three thousand, three hundred sixty-five".