205245553442124 has 48 divisors (see below), whose sum is σ = 515746795827200. Its totient is φ = 63152287087680.

The previous prime is 205245553442101. The next prime is 205245553442161. The reversal of 205245553442124 is 421244355542502.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55004277 + ... + 58617075.

Almost surely, 2^{205245553442124} is an apocalyptic number.

It is an amenable number.

205245553442124 is an abundant number, since it is smaller than the sum of its proper divisors (310501242385076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205245553442124 is a wasteful number, since it uses less digits than its factorization.

205245553442124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3976990 (or 3976988 counting only the distinct ones).

The product of its (nonzero) digits is 7680000, while the sum is 48.

The spelling of 205245553442124 in words is "two hundred five trillion, two hundred forty-five billion, five hundred fifty-three million, four hundred forty-two thousand, one hundred twenty-four".