16531152001 has 24 divisors (see below), whose sum is σ = 20993104104. Its totient is φ = 12900384000.

The previous prime is 16531151983. The next prime is 16531152007. The reversal of 16531152001 is 10025113561.

It is a happy number.

16531152001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 130507776 + 16400644225 = 11424^2 + 128065^2 .

It is not a de Polignac number, because 16531152001 - 2²⁵ = 16497597569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16531152007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131250 + ... + 224251.

It is an arithmetic number, because the mean of its divisors is an integer number (874712671).

Almost surely, 2^16531152001 is an apocalyptic number.

It is an amenable number.

16531152001 is a deficient number, since it is larger than the sum of its proper divisors (4461952103).

16531152001 is a wasteful number, since it uses less digits than its factorization.

16531152001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355601 (or 355594 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 16531152001 its reverse (10025113561), we get a palindrome (26556265562).

The spelling of 16531152001 in words is "sixteen billion, five hundred thirty-one million, one hundred fifty-two thousand, one".