15161723032442 has 16 divisors (see below), whose sum is σ = 25991581355520. Its totient is φ = 6497867260368.

The previous prime is 15161723032439. The next prime is 15161723032531. The reversal of 15161723032442 is 24423032716151.

It is a self number, because there is not a number n which added to its sum of digits gives 15161723032442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8042768 + ... + 9747284.

It is an arithmetic number, because the mean of its divisors is an integer number (1624473834720).

Almost surely, 2^{15161723032442} is an apocalyptic number.

15161723032442 is a deficient number, since it is larger than the sum of its proper divisors (10829858323078).

15161723032442 is a wasteful number, since it uses less digits than its factorization.

15161723032442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339885.

The product of its (nonzero) digits is 241920, while the sum is 41.

Adding to 15161723032442 its reverse (24423032716151), we get a palindrome (39584755748593).

The spelling of 15161723032442 in words is "fifteen trillion, one hundred sixty-one billion, seven hundred twenty-three million, thirty-two thousand, four hundred forty-two".