15506560050601 has 4 divisors (see below), whose sum is σ = 15509592827092. Its totient is φ = 15503527274112.

The previous prime is 15506560050599. The next prime is 15506560050659. The reversal of 15506560050601 is 10605006560551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3631402829376 + 11875157221225 = 1905624^2 + 3446035^2 .

It is a cyclic number.

It is not a de Polignac number, because 15506560050601 - 2¹ = 15506560050599 is a prime.

It is a super-2 number, since 2×15506560050601² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15506560050301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1516380576 + ... + 1516390801.

It is an arithmetic number, because the mean of its divisors is an integer number (3877398206773).

Almost surely, 2^{15506560050601} is an apocalyptic number.

It is an amenable number.

15506560050601 is a deficient number, since it is larger than the sum of its proper divisors (3032776491).

15506560050601 is an equidigital number, since it uses as much as digits as its factorization.

15506560050601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3032776490.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 15506560050601 in words is "fifteen trillion, five hundred six billion, five hundred sixty million, fifty thousand, six hundred one".