15663541042 has 16 divisors (see below), whose sum is σ = 23785482240. Its totient is φ = 7735444992.

The previous prime is 15663541037. The next prime is 15663541079. The reversal of 15663541042 is 24014536651.

It is a junction number, because it is equal to n+sod(n) for n = 15663540992 and 15663541010.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20367 + ... + 178162.

It is an arithmetic number, because the mean of its divisors is an integer number (1486592640).

Almost surely, 2^15663541042 is an apocalyptic number.

15663541042 is a deficient number, since it is larger than the sum of its proper divisors (8121941198).

15663541042 is a wasteful number, since it uses less digits than its factorization.

15663541042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199017.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 15663541042 in words is "fifteen billion, six hundred sixty-three million, five hundred forty-one thousand, forty-two".