155006656 has 28 divisors (see below), whose sum is σ = 351533968. Its totient is φ = 66431232.

The previous prime is 155006651. The next prime is 155006659. The reversal of 155006656 is 656600551.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (155006651) 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, 172551 + ... + 173446.

Almost surely, 2^155006656 is an apocalyptic number.

155006656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155006656 is an abundant number, since it is smaller than the sum of its proper divisors (196527312).

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

155006656 is an equidigital number, since it uses as much as digits as its factorization.

155006656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346016 (or 346006 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 155006656 is about 12450.1669065117. The cubic root of 155006656 is about 537.1762244033.

The spelling of 155006656 in words is "one hundred fifty-five million, six thousand, six hundred fifty-six".