155606022 has 96 divisors (see below), whose sum is σ = 410941440. Its totient is φ = 43506720.

The previous prime is 155605987. The next prime is 155606023. The reversal of 155606022 is 220606551.

155606022 is a `hidden beast` number, since 1 + 5 + 56 + 0 + 602 + 2 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155606023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68379 + ... + 70617.

It is an arithmetic number, because the mean of its divisors is an integer number (4280640).

Almost surely, 2^155606022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155606022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205470720).

155606022 is an abundant number, since it is smaller than the sum of its proper divisors (255335418).

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

155606022 is a wasteful number, since it uses less digits than its factorization.

155606022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280 (or 2268 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 155606022 is about 12474.2142838738. The cubic root of 155606022 is about 537.8677023915.

The spelling of 155606022 in words is "one hundred fifty-five million, six hundred six thousand, twenty-two".