15663522142 has 16 divisors (see below), whose sum is σ = 23723290800. Its totient is φ = 7755834240.

The previous prime is 15663522107. The next prime is 15663522167. The reversal of 15663522142 is 24122536651.

It is a congruent number.

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, 420534 + ... + 456262.

It is an arithmetic number, because the mean of its divisors is an integer number (1482705675).

Almost surely, 2^15663522142 is an apocalyptic number.

15663522142 is a deficient number, since it is larger than the sum of its proper divisors (8059768658).

15663522142 is a wasteful number, since it uses less digits than its factorization.

15663522142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37851.

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

The spelling of 15663522142 in words is "fifteen billion, six hundred sixty-three million, five hundred twenty-two thousand, one hundred forty-two".