16525821960400 has 240 divisors, whose sum is σ = 40865118465024. Its totient is φ = 6419226723840.

The previous prime is 16525821960391. The next prime is 16525821960433. The reversal of 16525821960400 is 406912852561.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1970405007 + ... + 1970413393.

Almost surely, 2^{16525821960400} is an apocalyptic number.

16525821960400 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 16525821960400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20432559232512).

16525821960400 is an abundant number, since it is smaller than the sum of its proper divisors (24339296504624).

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

16525821960400 is a wasteful number, since it uses less digits than its factorization.

16525821960400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9258 (or 9247 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 16525821960400 in words is "sixteen trillion, five hundred twenty-five billion, eight hundred twenty-one million, nine hundred sixty thousand, four hundred".