15255140566 has 4 divisors (see below), whose sum is σ = 22882710852. Its totient is φ = 7627570282.

The previous prime is 15255140539. The next prime is 15255140569. The reversal of 15255140566 is 66504155251.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15255140569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3813785140 + ... + 3813785143.

It is an arithmetic number, because the mean of its divisors is an integer number (5720677713).

Almost surely, 2^15255140566 is an apocalyptic number.

15255140566 is a deficient number, since it is larger than the sum of its proper divisors (7627570286).

15255140566 is an equidigital number, since it uses as much as digits as its factorization.

15255140566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7627570285.

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 15255140566 in words is "fifteen billion, two hundred fifty-five million, one hundred forty thousand, five hundred sixty-six".