16512064500 has 192 divisors, whose sum is σ = 50046796800. Its totient is φ = 4226947200.

The previous prime is 16512064489. The next prime is 16512064501. The reversal of 16512064500 is 546021561.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16512064501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3803331 + ... + 3807669.

It is an arithmetic number, because the mean of its divisors is an integer number (260660400).

Almost surely, 2^16512064500 is an apocalyptic number.

16512064500 is a gapful number since it is divisible by the number (10) 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 16512064500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25023398400).

16512064500 is an abundant number, since it is smaller than the sum of its proper divisors (33534732300).

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

16512064500 is a wasteful number, since it uses less digits than its factorization.

16512064500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4463 (or 4451 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

It can be divided in two parts, 165120 and 64500, that multiplied together give a square (10650240000 = 103200²).

The spelling of 16512064500 in words is "sixteen billion, five hundred twelve million, sixty-four thousand, five hundred".