15538871146 has 8 divisors (see below), whose sum is σ = 23327244864. Its totient is φ = 7763122860.

The previous prime is 15538871119. The next prime is 15538871191. The reversal of 15538871146 is 64117883551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 15538871146.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3153280 + ... + 3158203.

It is an arithmetic number, because the mean of its divisors is an integer number (2915905608).

Almost surely, 2^15538871146 is an apocalyptic number.

15538871146 is a deficient number, since it is larger than the sum of its proper divisors (7788373718).

15538871146 is a wasteful number, since it uses less digits than its factorization.

15538871146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6312716.

The product of its digits is 806400, while the sum is 49.

The spelling of 15538871146 in words is "fifteen billion, five hundred thirty-eight million, eight hundred seventy-one thousand, one hundred forty-six".