16115569948 has 18 divisors (see below), whose sum is σ = 29764701456. Its totient is φ = 7633690344.

The previous prime is 16115569937. The next prime is 16115569969. The reversal of 16115569948 is 84996551161.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5578740 + ... + 5581627.

Almost surely, 2^16115569948 is an apocalyptic number.

It is an amenable number.

16115569948 is a deficient number, since it is larger than the sum of its proper divisors (13649131508).

16115569948 is a wasteful number, since it uses less digits than its factorization.

16115569948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11160409 (or 11160388 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 55.

The spelling of 16115569948 in words is "sixteen billion, one hundred fifteen million, five hundred sixty-nine thousand, nine hundred forty-eight".