16497162725 has 6 divisors (see below), whose sum is σ = 20456481810. Its totient is φ = 13197730160.

The previous prime is 16497162707. The next prime is 16497162727. The reversal of 16497162725 is 52726179461.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 329277316 + 16167885409 = 18146^2 + 127153^2 .

It is not a de Polignac number, because 16497162725 - 2¹⁰ = 16497161701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16497162727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 329943230 + ... + 329943279.

It is an arithmetic number, because the mean of its divisors is an integer number (3409413635).

Almost surely, 2^16497162725 is an apocalyptic number.

It is an amenable number.

16497162725 is a deficient number, since it is larger than the sum of its proper divisors (3959319085).

16497162725 is an equidigital number, since it uses as much as digits as its factorization.

16497162725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659886519 (or 659886514 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 50.

The spelling of 16497162725 in words is "sixteen billion, four hundred ninety-seven million, one hundred sixty-two thousand, seven hundred twenty-five".