16725042100 has 36 divisors (see below), whose sum is σ = 39085139884. Its totient is φ = 6175399680.

The previous prime is 16725042079. The next prime is 16725042101. The reversal of 16725042100 is 124052761.

It can be written as a sum of positive squares in 6 ways, for example, as 5997882916 + 10727159184 = 77446^2 + 103572^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16725042101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6431409 + ... + 6434008.

Almost surely, 2^16725042100 is an apocalyptic number.

16725042100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16725042100 is an abundant number, since it is smaller than the sum of its proper divisors (22360097784).

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

16725042100 is a wasteful number, since it uses less digits than its factorization.

16725042100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12865444 (or 12865437 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 16725042100 its reverse (124052761), we get a palindrome (16849094861).

The spelling of 16725042100 in words is "sixteen billion, seven hundred twenty-five million, forty-two thousand, one hundred".