15669860137 has 4 divisors (see below), whose sum is σ = 15816307536. Its totient is φ = 15523412740.

The previous prime is 15669860123. The next prime is 15669860149. The reversal of 15669860137 is 73106896651.

It is a happy number.

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 15669860137 - 2⁷ = 15669860009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15669860197) 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, 73223539 + ... + 73223752.

It is an arithmetic number, because the mean of its divisors is an integer number (3954076884).

Almost surely, 2^15669860137 is an apocalyptic number.

It is an amenable number.

15669860137 is a deficient number, since it is larger than the sum of its proper divisors (146447399).

15669860137 is a wasteful number, since it uses less digits than its factorization.

15669860137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146447398.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 15669860137 in words is "fifteen billion, six hundred sixty-nine million, eight hundred sixty thousand, one hundred thirty-seven".