155047668 has 24 divisors (see below), whose sum is σ = 363619872. Its totient is φ = 51419424.

The previous prime is 155047661. The next prime is 155047679. The reversal of 155047668 is 866740551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155047661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30430 + ... + 35157.

It is an arithmetic number, because the mean of its divisors is an integer number (15150828).

Almost surely, 2^155047668 is an apocalyptic number.

It is an amenable number.

155047668 is an abundant number, since it is smaller than the sum of its proper divisors (208572204).

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

155047668 is a wasteful number, since it uses less digits than its factorization.

155047668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65791 (or 65789 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 155047668 is about 12451.8138437739. The cubic root of 155047668 is about 537.2235959790.

The spelling of 155047668 in words is "one hundred fifty-five million, forty-seven thousand, six hundred sixty-eight".