155700207050491 has 2 divisors, whose sum is σ = 155700207050492. Its totient is φ = 155700207050490.

The previous prime is 155700207050483. The next prime is 155700207050551. The reversal of 155700207050491 is 194050702007551.

It is a weak prime.

It is an emirp because it is prime and its reverse (194050702007551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155700207050491 - 2³ = 155700207050483 is a prime.

It is not a weakly prime, because it can be changed into another prime (155700207051491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77850103525245 + 77850103525246.

It is an arithmetic number, because the mean of its divisors is an integer number (77850103525246).

Almost surely, 2^{155700207050491} is an apocalyptic number.

155700207050491 is a deficient number, since it is larger than the sum of its proper divisors (1).

155700207050491 is an equidigital number, since it uses as much as digits as its factorization.

155700207050491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 441000, while the sum is 46.

The spelling of 155700207050491 in words is "one hundred fifty-five trillion, seven hundred billion, two hundred seven million, fifty thousand, four hundred ninety-one".