11565142645 has 16 divisors (see below), whose sum is σ = 15862642560. Its totient is φ = 7929445824.

The previous prime is 11565142639. The next prime is 11565142681. The reversal of 11565142645 is 54624156511.

It is a cyclic number.

It is not a de Polignac number, because 11565142645 - 2¹¹ = 11565140597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11565142598 and 11565142607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419919 + ... + 446611.

It is an arithmetic number, because the mean of its divisors is an integer number (991415160).

Almost surely, 2^11565142645 is an apocalyptic number.

It is an amenable number.

11565142645 is a deficient number, since it is larger than the sum of its proper divisors (4297499915).

11565142645 is a wasteful number, since it uses less digits than its factorization.

11565142645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39084.

The product of its digits is 144000, while the sum is 40.

The spelling of 11565142645 in words is "eleven billion, five hundred sixty-five million, one hundred forty-two thousand, six hundred forty-five".