15606139045 has 32 divisors (see below), whose sum is σ = 21769678080. Its totient is φ = 10518128640.

The previous prime is 15606139013. The next prime is 15606139057. The reversal of 15606139045 is 54093160651.

It is a happy number.

It is not a de Polignac number, because 15606139045 - 2⁵ = 15606139013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15606138989 and 15606139007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5534646 + ... + 5537464.

It is an arithmetic number, because the mean of its divisors is an integer number (680302440).

Almost surely, 2^15606139045 is an apocalyptic number.

It is an amenable number.

15606139045 is a deficient number, since it is larger than the sum of its proper divisors (6163539035).

15606139045 is a wasteful number, since it uses less digits than its factorization.

15606139045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5485.

The product of its (nonzero) digits is 97200, while the sum is 40.

Adding to 15606139045 its reverse (54093160651), we get a palindrome (69699299696).

The spelling of 15606139045 in words is "fifteen billion, six hundred six million, one hundred thirty-nine thousand, forty-five".