155331066 has 16 divisors (see below), whose sum is σ = 338904288. Its totient is φ = 47070000.

The previous prime is 155331053. The next prime is 155331067. The reversal of 155331066 is 660133551.

It is not an unprimeable number, because it can be changed into a prime (155331067) 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 7 ways as a sum of consecutive naturals, for example, 1176685 + ... + 1176816.

It is an arithmetic number, because the mean of its divisors is an integer number (21181518).

Almost surely, 2^155331066 is an apocalyptic number.

155331066 is an abundant number, since it is smaller than the sum of its proper divisors (183573222).

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

155331066 is a wasteful number, since it uses less digits than its factorization.

155331066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353517.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 155331066 is about 12463.1884363513. The cubic root of 155331066 is about 537.5507113502.

The spelling of 155331066 in words is "one hundred fifty-five million, three hundred thirty-one thousand, sixty-six".