155606 has 12 divisors (see below), whose sum is σ = 256956. Its totient is φ = 70620.

The previous prime is 155599. The next prime is 155609. The reversal of 155606 is 606551.

155606 is nontrivially palindromic in base 4.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 155606.

It is not an unprimeable number, because it can be changed into a prime (155609) by changing a digit.

155606 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80 + ... + 563.

It is an arithmetic number, because the mean of its divisors is an integer number (21413).

2¹⁵⁵⁶⁰⁶ is an apocalyptic number.

155606 is a deficient number, since it is larger than the sum of its proper divisors (101350).

155606 is a wasteful number, since it uses less digits than its factorization.

155606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 155606 is about 394.4692636949. The cubic root of 155606 is about 53.7867677043.

The spelling of 155606 in words is "one hundred fifty-five thousand, six hundred six".