12945036501 has 24 divisors (see below), whose sum is σ = 19482372000. Its totient is φ = 8272468512.

The previous prime is 12945036497. The next prime is 12945036521. The reversal of 12945036501 is 10563054921.

12945036501 is a `hidden beast` number, since 1 + 2 + 94 + 503 + 65 + 0 + 1 = 666.

It is not a de Polignac number, because 12945036501 - 2² = 12945036497 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12945036521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142131 + ... + 214688.

It is an arithmetic number, because the mean of its divisors is an integer number (811765500).

Almost surely, 2^12945036501 is an apocalyptic number.

It is an amenable number.

12945036501 is a deficient number, since it is larger than the sum of its proper divisors (6537335499).

12945036501 is a wasteful number, since it uses less digits than its factorization.

12945036501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356993 (or 356990 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 12945036501 in words is "twelve billion, nine hundred forty-five million, thirty-six thousand, five hundred one".