16200011520 has 648 divisors, whose sum is σ = 71156095920. Its totient is φ = 3364945920.

The previous prime is 16200011497. The next prime is 16200011533. The reversal of 16200011520 is 2511000261.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 16200011493 and 16200011502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6207976 + ... + 6210584.

It is an arithmetic number, because the mean of its divisors is an integer number (109808790).

Almost surely, 2^16200011520 is an apocalyptic number.

16200011520 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 16200011520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35578047960).

16200011520 is an abundant number, since it is smaller than the sum of its proper divisors (54956084400).

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

16200011520 is a wasteful number, since it uses less digits than its factorization.

16200011520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661 (or 2637 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 16200011520 its reverse (2511000261), we get a palindrome (18711011781).

It can be divided in two parts, 162000 and 11520, that multiplied together give a square (1866240000 = 43200²).

The spelling of 16200011520 in words is "sixteen billion, two hundred million, eleven thousand, five hundred twenty".