155606100 has 144 divisors (see below), whose sum is σ = 513592128. Its totient is φ = 36034560.

The previous prime is 155606041. The next prime is 155606119. The reversal of 155606100 is 1606551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65127 + ... + 67473.

It is an arithmetic number, because the mean of its divisors is an integer number (3566612).

Almost surely, 2^155606100 is an apocalyptic number.

155606100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155606100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256796064).

155606100 is an abundant number, since it is smaller than the sum of its proper divisors (357986028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155606100 is a wasteful number, since it uses less digits than its factorization.

155606100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394 (or 2387 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 155606100 is about 12474.2174103228. The cubic root of 155606100 is about 537.8677922631.

The spelling of 155606100 in words is "one hundred fifty-five million, six hundred six thousand, one hundred".