36658846225 has 27 divisors (see below), whose sum is σ = 45942860467. Its totient is φ = 29016903680.

The previous prime is 36658846219. The next prime is 36658846249. The reversal of 36658846225 is 52264885663.

It is a happy number.

The square root of 36658846225 is 191465.

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

It can be written as a sum of positive squares in 13 ways, for example, as 15314805009 + 21344041216 = 123753^2 + 146096^2 .

It is not a de Polignac number, because 36658846225 - 2⁷ = 36658846097 is a prime.

It is a Duffinian number.

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, 142641297 + ... + 142641553.

Almost surely, 2^36658846225 is an apocalyptic number.

36658846225 is the 191465-th square number.

36658846225 is the 95733-rd centered octagonal number.

It is an amenable number.

36658846225 is a deficient number, since it is larger than the sum of its proper divisors (9284014242).

36658846225 is an frugal number, since it uses more digits than its factorization.

36658846225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822 (or 411 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 55.

The spelling of 36658846225 in words is "thirty-six billion, six hundred fifty-eight million, eight hundred forty-six thousand, two hundred twenty-five".