15150066600561 has 4 divisors (see below), whose sum is σ = 20200088800752. Its totient is φ = 10100044400372.

The previous prime is 15150066600533. The next prime is 15150066600587. The reversal of 15150066600561 is 16500666005151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15150066600561 - 2³⁴ = 15132886731377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15150066600521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2525011100091 + ... + 2525011100096.

It is an arithmetic number, because the mean of its divisors is an integer number (5050022200188).

Almost surely, 2^{15150066600561} is an apocalyptic number.

It is an amenable number.

15150066600561 is a deficient number, since it is larger than the sum of its proper divisors (5050022200191).

15150066600561 is an equidigital number, since it uses as much as digits as its factorization.

15150066600561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050022200190.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 15150066600561 in words is "fifteen trillion, one hundred fifty billion, sixty-six million, six hundred thousand, five hundred sixty-one".