1205515116207 has 6 divisors (see below), whose sum is σ = 1741299612312. Its totient is φ = 803676744132.

The previous prime is 1205515116203. The next prime is 1205515116241. The reversal of 1205515116207 is 7026115155021.

1205515116207 is a `hidden beast` number, since 1 + 2 + 0 + 5 + 5 + 15 + 11 + 620 + 7 = 666.

It is not a de Polignac number, because 1205515116207 - 2² = 1205515116203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205515116203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66973062003 + ... + 66973062020.

It is an arithmetic number, because the mean of its divisors is an integer number (290216602052).

Almost surely, 2^{1205515116207} is an apocalyptic number.

1205515116207 is a deficient number, since it is larger than the sum of its proper divisors (535784496105).

1205515116207 is a wasteful number, since it uses less digits than its factorization.

1205515116207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133946124029 (or 133946124026 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 36.

The spelling of 1205515116207 in words is "one trillion, two hundred five billion, five hundred fifteen million, one hundred sixteen thousand, two hundred seven".