12405715601 has 2 divisors, whose sum is σ = 12405715602. Its totient is φ = 12405715600.

The previous prime is 12405715591. The next prime is 12405715639. The reversal of 12405715601 is 10651750421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12342099025 + 63616576 = 111095^2 + 7976^2 .

It is a cyclic number.

It is not a de Polignac number, because 12405715601 - 2²⁶ = 12338606737 is a prime.

It is not a weakly prime, because it can be changed into another prime (12405711601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6202857800 + 6202857801.

It is an arithmetic number, because the mean of its divisors is an integer number (6202857801).

Almost surely, 2^12405715601 is an apocalyptic number.

It is an amenable number.

12405715601 is a deficient number, since it is larger than the sum of its proper divisors (1).

12405715601 is an equidigital number, since it uses as much as digits as its factorization.

12405715601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 12405715601 in words is "twelve billion, four hundred five million, seven hundred fifteen thousand, six hundred one".