205115003051 has 8 divisors (see below), whose sum is σ = 237241449984. Its totient is φ = 173694632040.

The previous prime is 205115003033. The next prime is 205115003081. The reversal of 205115003051 is 150300511502.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205115003051 - 2¹⁸ = 205114740907 is a prime.

It is a super-2 number, since 2×205115003051² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (205115003081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176518355 + ... + 176519516.

It is an arithmetic number, because the mean of its divisors is an integer number (29655181248).

Almost surely, 2^205115003051 is an apocalyptic number.

205115003051 is a deficient number, since it is larger than the sum of its proper divisors (32126446933).

205115003051 is an equidigital number, since it uses as much as digits as its factorization.

205115003051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353037961.

The product of its (nonzero) digits is 750, while the sum is 23.

Adding to 205115003051 its reverse (150300511502), we get a palindrome (355415514553).

The spelling of 205115003051 in words is "two hundred five billion, one hundred fifteen million, three thousand, fifty-one".