15663523142 has 16 divisors (see below), whose sum is σ = 23972412672. Its totient is φ = 7674072840.

The previous prime is 15663523129. The next prime is 15663523147. The reversal of 15663523142 is 24132536651.

It is a junction number, because it is equal to n+sod(n) for n = 15663523096 and 15663523105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15663523147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315218 + ... + 361509.

It is an arithmetic number, because the mean of its divisors is an integer number (1498275792).

Almost surely, 2^15663523142 is an apocalyptic number.

15663523142 is a deficient number, since it is larger than the sum of its proper divisors (8308889530).

15663523142 is a wasteful number, since it uses less digits than its factorization.

15663523142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676963.

The product of its digits is 129600, while the sum is 38.

The spelling of 15663523142 in words is "fifteen billion, six hundred sixty-three million, five hundred twenty-three thousand, one hundred forty-two".