1205225727164 has 12 divisors (see below), whose sum is σ = 2138037420624. Its totient is φ = 594357892704.

The previous prime is 1205225727151. The next prime is 1205225727229. The reversal of 1205225727164 is 4617275225021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2063742392 + ... + 2063742975.

It is an arithmetic number, because the mean of its divisors is an integer number (178169785052).

Almost surely, 2^{1205225727164} is an apocalyptic number.

It is an amenable number.

1205225727164 is a deficient number, since it is larger than the sum of its proper divisors (932811693460).

1205225727164 is a wasteful number, since it uses less digits than its factorization.

1205225727164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4127485444 (or 4127485442 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 1205225727164 in words is "one trillion, two hundred five billion, two hundred twenty-five million, seven hundred twenty-seven thousand, one hundred sixty-four".