155271461051111 has 2 divisors, whose sum is σ = 155271461051112. Its totient is φ = 155271461051110.

The previous prime is 155271461051017. The next prime is 155271461051123. The reversal of 155271461051111 is 111150164172551.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155271461051111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155271461051411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77635730525555 + 77635730525556.

It is an arithmetic number, because the mean of its divisors is an integer number (77635730525556).

Almost surely, 2^{155271461051111} is an apocalyptic number.

155271461051111 is a deficient number, since it is larger than the sum of its proper divisors (1).

155271461051111 is an equidigital number, since it uses as much as digits as its factorization.

155271461051111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42000, while the sum is 41.

The spelling of 155271461051111 in words is "one hundred fifty-five trillion, two hundred seventy-one billion, four hundred sixty-one million, fifty-one thousand, one hundred eleven".