155650161105 has 12 divisors (see below), whose sum is σ = 269793612660. Its totient is φ = 83013419232.

The previous prime is 155650161101. The next prime is 155650161133. The reversal of 155650161105 is 501161056551.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 97201779984 + 58448381121 = 311772^2 + 241761^2 .

It is not a de Polignac number, because 155650161105 - 2² = 155650161101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155650161105.

It is not an unprimeable number, because it can be changed into a prime (155650161101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1729446190 + ... + 1729446279.

It is an arithmetic number, because the mean of its divisors is an integer number (22482801055).

Almost surely, 2^155650161105 is an apocalyptic number.

155650161105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155650161105 is a deficient number, since it is larger than the sum of its proper divisors (114143451555).

155650161105 is a wasteful number, since it uses less digits than its factorization.

155650161105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3458892480 (or 3458892477 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 36.

The spelling of 155650161105 in words is "one hundred fifty-five billion, six hundred fifty million, one hundred sixty-one thousand, one hundred five".