15660144950 has 12 divisors (see below), whose sum is σ = 29127869700. Its totient is φ = 6264057960.

The previous prime is 15660144923. The next prime is 15660144959. The reversal of 15660144950 is 5944106651.

It is a junction number, because it is equal to n+sod(n) for n = 15660144898 and 15660144907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15660144959) 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 in 5 ways as a sum of consecutive naturals, for example, 156601400 + ... + 156601499.

It is an arithmetic number, because the mean of its divisors is an integer number (2427322475).

Almost surely, 2^15660144950 is an apocalyptic number.

15660144950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15660144950 is a deficient number, since it is larger than the sum of its proper divisors (13467724750).

15660144950 is a wasteful number, since it uses less digits than its factorization.

15660144950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313202911 (or 313202906 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 15660144950 in words is "fifteen billion, six hundred sixty million, one hundred forty-four thousand, nine hundred fifty".