155740277941 has 2 divisors, whose sum is σ = 155740277942. Its totient is φ = 155740277940.

The previous prime is 155740277909. The next prime is 155740277969. The reversal of 155740277941 is 149772047551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119666873041 + 36073404900 = 345929^2 + 189930^2 .

It is a cyclic number.

It is not a de Polignac number, because 155740277941 - 2⁵ = 155740277909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155740277981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77870138970 + 77870138971.

It is an arithmetic number, because the mean of its divisors is an integer number (77870138971).

Almost surely, 2^155740277941 is an apocalyptic number.

It is an amenable number.

155740277941 is a deficient number, since it is larger than the sum of its proper divisors (1).

155740277941 is an equidigital number, since it uses as much as digits as its factorization.

155740277941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2469600, while the sum is 52.

The spelling of 155740277941 in words is "one hundred fifty-five billion, seven hundred forty million, two hundred seventy-seven thousand, nine hundred forty-one".