16638015148 has 6 divisors (see below), whose sum is σ = 29116526516. Its totient is φ = 8319007572.

The previous prime is 16638015109. The next prime is 16638015161. The reversal of 16638015148 is 84151083661.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2079751890 + ... + 2079751897.

Almost surely, 2^16638015148 is an apocalyptic number.

It is an amenable number.

16638015148 is a deficient number, since it is larger than the sum of its proper divisors (12478511368).

16638015148 is a wasteful number, since it uses less digits than its factorization.

16638015148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4159503791 (or 4159503789 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 16638015148 in words is "sixteen billion, six hundred thirty-eight million, fifteen thousand, one hundred forty-eight".