15663662146 has 16 divisors (see below), whose sum is σ = 25638016320. Its totient is φ = 7118021680.

The previous prime is 15663662107. The next prime is 15663662171. The reversal of 15663662146 is 64126636651.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15663662096 and 15663662105.

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, 1486 + ... + 177001.

It is an arithmetic number, because the mean of its divisors is an integer number (1602376020).

Almost surely, 2^15663662146 is an apocalyptic number.

15663662146 is a deficient number, since it is larger than the sum of its proper divisors (9974354174).

15663662146 is a wasteful number, since it uses less digits than its factorization.

15663662146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182489.

The product of its digits is 933120, while the sum is 46.

The spelling of 15663662146 in words is "fifteen billion, six hundred sixty-three million, six hundred sixty-two thousand, one hundred forty-six".