155810656 has 12 divisors (see below), whose sum is σ = 306752292. Its totient is φ = 77905312.

The previous prime is 155810651. The next prime is 155810657. The reversal of 155810656 is 656018551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155810651) 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 as a sum of consecutive naturals, namely, 2434510 + ... + 2434573.

It is an arithmetic number, because the mean of its divisors is an integer number (25562691).

Almost surely, 2^155810656 is an apocalyptic number.

155810656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

155810656 is a deficient number, since it is larger than the sum of its proper divisors (150941636).

155810656 is an equidigital number, since it uses as much as digits as its factorization.

155810656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4869093 (or 4869085 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 155810656 is about 12482.4138691200. The cubic root of 155810656 is about 538.1033783736.

The spelling of 155810656 in words is "one hundred fifty-five million, eight hundred ten thousand, six hundred fifty-six".