205157150111 has 2 divisors, whose sum is σ = 205157150112. Its totient is φ = 205157150110.

The previous prime is 205157150083. The next prime is 205157150141. The reversal of 205157150111 is 111051751502.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205157150111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205157150141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102578575055 + 102578575056.

It is an arithmetic number, because the mean of its divisors is an integer number (102578575056).

Almost surely, 2^205157150111 is an apocalyptic number.

205157150111 is a deficient number, since it is larger than the sum of its proper divisors (1).

205157150111 is an equidigital number, since it uses as much as digits as its factorization.

205157150111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1750, while the sum is 29.

The spelling of 205157150111 in words is "two hundred five billion, one hundred fifty-seven million, one hundred fifty thousand, one hundred eleven".