15606147659 has 12 divisors (see below), whose sum is σ = 15864156504. Its totient is φ = 15352264224.

The previous prime is 15606147647. The next prime is 15606147673. The reversal of 15606147659 is 95674160651.

15606147659 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-15606147659 is a prime.

It is a super-2 number, since 2×15606147659² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15606147619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4069607 + ... + 4073439.

It is an arithmetic number, because the mean of its divisors is an integer number (1322013042).

Almost surely, 2^15606147659 is an apocalyptic number.

15606147659 is a deficient number, since it is larger than the sum of its proper divisors (258008845).

15606147659 is an frugal number, since it uses more digits than its factorization.

15606147659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4874 (or 4807 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 50.

The spelling of 15606147659 in words is "fifteen billion, six hundred six million, one hundred forty-seven thousand, six hundred fifty-nine".