16252735512 has 64 divisors (see below), whose sum is σ = 43927843680. Its totient is φ = 4981358592.

The previous prime is 16252735427. The next prime is 16252735519. The reversal of 16252735512 is 21553725261.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16252735519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21163 + ... + 181530.

Almost surely, 2^16252735512 is an apocalyptic number.

16252735512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16252735512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21963921840).

16252735512 is an abundant number, since it is smaller than the sum of its proper divisors (27675108168).

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

16252735512 is a wasteful number, since it uses less digits than its factorization.

16252735512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202972 (or 202968 counting only the distinct ones).

The product of its digits is 126000, while the sum is 39.

The spelling of 16252735512 in words is "sixteen billion, two hundred fifty-two million, seven hundred thirty-five thousand, five hundred twelve".