155122241705 has 16 divisors (see below), whose sum is σ = 187173225360. Its totient is φ = 123413864448.

The previous prime is 155122241689. The next prime is 155122241707. The reversal of 155122241705 is 507142221551.

It can be written as a sum of positive squares in 8 ways, for example, as 31699309849 + 123422931856 = 178043^2 + 351316^2 .

It is a cyclic number.

It is not a de Polignac number, because 155122241705 - 2⁴ = 155122241689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155122241707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3071639 + ... + 3121731.

It is an arithmetic number, because the mean of its divisors is an integer number (11698326585).

Almost surely, 2^155122241705 is an apocalyptic number.

It is an amenable number.

155122241705 is a deficient number, since it is larger than the sum of its proper divisors (32050983655).

155122241705 is a wasteful number, since it uses less digits than its factorization.

155122241705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53500.

The product of its (nonzero) digits is 28000, while the sum is 35.

The spelling of 155122241705 in words is "one hundred fifty-five billion, one hundred twenty-two million, two hundred forty-one thousand, seven hundred five".