12002645541 has 32 divisors (see below), whose sum is σ = 17816716800. Its totient is φ = 7152122880.

The previous prime is 12002645537. The next prime is 12002645563. The reversal of 12002645541 is 14554620021.

It is not a de Polignac number, because 12002645541 - 2² = 12002645537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12002645499 and 12002645508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002645531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23700 + ... + 156738.

It is an arithmetic number, because the mean of its divisors is an integer number (556772400).

Almost surely, 2^12002645541 is an apocalyptic number.

It is an amenable number.

12002645541 is a deficient number, since it is larger than the sum of its proper divisors (5814071259).

12002645541 is a wasteful number, since it uses less digits than its factorization.

12002645541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133149.

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 12002645541 in words is "twelve billion, two million, six hundred forty-five thousand, five hundred forty-one".