12740015601 has 12 divisors (see below), whose sum is σ = 18408021060. Its totient is φ = 8490677760.

The previous prime is 12740015591. The next prime is 12740015623. The reversal of 12740015601 is 10651004721.

It is a happy number.

12740015601 is a `hidden beast` number, since 1 + 2 + 7 + 40 + 0 + 15 + 601 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10957064976 + 1782950625 = 104676^2 + 42225^2 .

It is not a de Polignac number, because 12740015601 - 2¹¹ = 12740013553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12740015681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191680 + ... + 249441.

It is an arithmetic number, because the mean of its divisors is an integer number (1534001755).

Almost surely, 2^12740015601 is an apocalyptic number.

It is an amenable number.

12740015601 is a deficient number, since it is larger than the sum of its proper divisors (5668005459).

12740015601 is a wasteful number, since it uses less digits than its factorization.

12740015601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444336 (or 444333 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The spelling of 12740015601 in words is "twelve billion, seven hundred forty million, fifteen thousand, six hundred one".