16357131025 has 9 divisors (see below), whose sum is σ = 20283635451. Its totient is φ = 13085193240.

The previous prime is 16357131023. The next prime is 16357131041. The reversal of 16357131025 is 52013175361.

The square root of 16357131025 is 127895.

It is a perfect power (a square), and thus also a powerful number.

16357131025 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 only one way, i.e., 5888567169 + 10468563856 = 76737^2 + 102316^2 .

It is not a de Polignac number, because 16357131025 - 2¹ = 16357131023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16357131023) 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 8 ways as a sum of consecutive naturals, for example, 626686 + ... + 652264.

Almost surely, 2^16357131025 is an apocalyptic number.

16357131025 is the 127895-th square number.

16357131025 is the 63948-th centered octagonal number.

It is an amenable number.

16357131025 is a deficient number, since it is larger than the sum of its proper divisors (3926504426).

16357131025 is an frugal number, since it uses more digits than its factorization.

16357131025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51168 (or 25584 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The spelling of 16357131025 in words is "sixteen billion, three hundred fifty-seven million, one hundred thirty-one thousand, twenty-five".