155641606 has 8 divisors (see below), whose sum is σ = 235774224. Its totient is φ = 77050200.

The previous prime is 155641543. The next prime is 155641609. The reversal of 155641606 is 606146551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155641609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385050 + ... + 385453.

It is an arithmetic number, because the mean of its divisors is an integer number (29471778).

Almost surely, 2^155641606 is an apocalyptic number.

155641606 is a deficient number, since it is larger than the sum of its proper divisors (80132618).

155641606 is a wasteful number, since it uses less digits than its factorization.

155641606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770606.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 155641606 is about 12475.6405045994. The cubic root of 155641606 is about 537.9086991458.

The spelling of 155641606 in words is "one hundred fifty-five million, six hundred forty-one thousand, six hundred six".