205215150266325 has 48 divisors (see below), whose sum is σ = 377033432353600. Its totient is φ = 109434841214400.

The previous prime is 205215150266213. The next prime is 205215150266353. The reversal of 205215150266325 is 523662051512502.

205215150266325 is a `hidden beast` number, since 2 + 0 + 5 + 2 + 1 + 5 + 1 + 5 + 0 + 2 + 6 + 632 + 5 = 666.

It is not a de Polignac number, because 205215150266325 - 2¹⁵ = 205215150233557 is a prime.

It is a super-2 number, since 2×205215150266325² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12801691 + ... + 23964840.

Almost surely, 2^{205215150266325} is an apocalyptic number.

205215150266325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205215150266325 is a deficient number, since it is larger than the sum of its proper divisors (171818282087275).

205215150266325 is a wasteful number, since it uses less digits than its factorization.

205215150266325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36774819 (or 36774808 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 205215150266325 in words is "two hundred five trillion, two hundred fifteen billion, one hundred fifty million, two hundred sixty-six thousand, three hundred twenty-five".