15993051416 has 8 divisors (see below), whose sum is σ = 29986971420. Its totient is φ = 7996525704.

The previous prime is 15993051413. The next prime is 15993051419. The reversal of 15993051416 is 61415039951.

It is an interprime number because it is at equal distance from previous prime (15993051413) and next prime (15993051419).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15993051413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 999565706 + ... + 999565721.

Almost surely, 2^15993051416 is an apocalyptic number.

It is an amenable number.

15993051416 is a deficient number, since it is larger than the sum of its proper divisors (13993920004).

15993051416 is a wasteful number, since it uses less digits than its factorization.

15993051416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999131433 (or 1999131429 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 44.

The spelling of 15993051416 in words is "fifteen billion, nine hundred ninety-three million, fifty-one thousand, four hundred sixteen".