158247216733225 has 27 divisors (see below), whose sum is σ = 196770181670053. Its totient is φ = 126248009215040.

The previous prime is 158247216733219. The next prime is 158247216733283. The reversal of 158247216733225 is 522337612742851.

The square root of 158247216733225 is 12579635.

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

It can be written as a sum of positive squares in 4 ways, for example, as 15783608633881 + 142463608099344 = 3972859^2 + 11935812^2 .

It is not a de Polignac number, because 158247216733225 - 2¹⁵ = 158247216700457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 158247216733225.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 24089997741 + ... + 24090004309.

Almost surely, 2^{158247216733225} is an apocalyptic number.

158247216733225 is the 12579635-th square number.

158247216733225 is the 6289818-th centered octagonal number.

It is an amenable number.

158247216733225 is a deficient number, since it is larger than the sum of its proper divisors (38522964936828).

158247216733225 is an frugal number, since it uses more digits than its factorization.

158247216733225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13914 (or 6957 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 58.

The spelling of 158247216733225 in words is "one hundred fifty-eight trillion, two hundred forty-seven billion, two hundred sixteen million, seven hundred thirty-three thousand, two hundred twenty-five".