16531252026 has 32 divisors (see below), whose sum is σ = 33293053248. Its totient is φ = 5472109440.

The previous prime is 16531252021. The next prime is 16531252027. The reversal of 16531252026 is 62025213561.

It is not an unprimeable number, because it can be changed into a prime (16531252021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564276 + ... + 592848.

It is an arithmetic number, because the mean of its divisors is an integer number (1040407914).

Almost surely, 2^16531252026 is an apocalyptic number.

16531252026 is an abundant number, since it is smaller than the sum of its proper divisors (16761801222).

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

16531252026 is a wasteful number, since it uses less digits than its factorization.

16531252026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29246.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 16531252026 its reverse (62025213561), we get a palindrome (78556465587).

The spelling of 16531252026 in words is "sixteen billion, five hundred thirty-one million, two hundred fifty-two thousand, twenty-six".