155630261162305 has 24 divisors (see below), whose sum is σ = 189450604105272. Its totient is φ = 122733209539584.

The previous prime is 155630261162261. The next prime is 155630261162333. The reversal of 155630261162305 is 503261162036551.

It can be written as a sum of positive squares in 12 ways, for example, as 458793539649 + 155171467622656 = 677343^2 + 12456784^2 .

It is a de Polignac number, because none of the positive numbers 2^k-155630261162305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48456757 + ... + 51568573.

It is an arithmetic number, because the mean of its divisors is an integer number (7893775171053).

Almost surely, 2^{155630261162305} is an apocalyptic number.

It is an amenable number.

155630261162305 is a deficient number, since it is larger than the sum of its proper divisors (33820342942967).

155630261162305 is an equidigital number, since it uses as much as digits as its factorization.

155630261162305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113845 (or 3113772 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 155630261162305 in words is "one hundred fifty-five trillion, six hundred thirty billion, two hundred sixty-one million, one hundred sixty-two thousand, three hundred five".