15749664112 has 80 divisors (see below), whose sum is σ = 37579816960. Its totient is φ = 6226834176.

The previous prime is 15749664103. The next prime is 15749664121. The reversal of 15749664112 is 21146694751.

It is an interprime number because it is at equal distance from previous prime (15749664103) and next prime (15749664121).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4393873 + ... + 4397455.

It is an arithmetic number, because the mean of its divisors is an integer number (469747712).

Almost surely, 2^15749664112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15749664112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18789908480).

15749664112 is an abundant number, since it is smaller than the sum of its proper divisors (21830152848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15749664112 is a wasteful number, since it uses less digits than its factorization.

15749664112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6630 (or 6624 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The spelling of 15749664112 in words is "fifteen billion, seven hundred forty-nine million, six hundred sixty-four thousand, one hundred twelve".