155665355 has 8 divisors (see below), whose sum is σ = 187354752. Its totient is φ = 124161408.

The previous prime is 155665339. The next prime is 155665369. The reversal of 155665355 is 553566551.

155665355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 155665355 - 2⁴ = 155665339 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44507 + ... + 47876.

It is an arithmetic number, because the mean of its divisors is an integer number (23419344).

Almost surely, 2^155665355 is an apocalyptic number.

155665355 is a deficient number, since it is larger than the sum of its proper divisors (31689397).

155665355 is an equidigital number, since it uses as much as digits as its factorization.

155665355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92725.

The product of its digits is 337500, while the sum is 41.

The square root of 155665355 is about 12476.5922831517. The cubic root of 155665355 is about 537.9360571776.

The spelling of 155665355 in words is "one hundred fifty-five million, six hundred sixty-five thousand, three hundred fifty-five".