15136606851 has 4 divisors (see below), whose sum is σ = 20182142472. Its totient is φ = 10091071232.

The previous prime is 15136606847. The next prime is 15136606883. The reversal of 15136606851 is 15860663151.

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

It is a cyclic number.

It is not a de Polignac number, because 15136606851 - 2² = 15136606847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15136606951) 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, 2522767806 + ... + 2522767811.

It is an arithmetic number, because the mean of its divisors is an integer number (5045535618).

Almost surely, 2^15136606851 is an apocalyptic number.

15136606851 is a deficient number, since it is larger than the sum of its proper divisors (5045535621).

15136606851 is an equidigital number, since it uses as much as digits as its factorization.

15136606851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5045535620.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 15136606851 in words is "fifteen billion, one hundred thirty-six million, six hundred six thousand, eight hundred fifty-one".