155352665 has 16 divisors (see below), whose sum is σ = 204059856. Its totient is φ = 112838400.

The previous prime is 155352643. The next prime is 155352707. The reversal of 155352665 is 566253551.

155352665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 18088009 + 137264656 = 4253^2 + 11716^2 .

It is not a de Polignac number, because 155352665 - 2¹² = 155348569 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15626 + ... + 23555.

It is an arithmetic number, because the mean of its divisors is an integer number (12753741).

Almost surely, 2^155352665 is an apocalyptic number.

It is an amenable number.

155352665 is a deficient number, since it is larger than the sum of its proper divisors (48707191).

155352665 is a wasteful number, since it uses less digits than its factorization.

155352665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39260.

The product of its digits is 135000, while the sum is 38.

The square root of 155352665 is about 12464.0549180433. The cubic root of 155352665 is about 537.5756259193.

The spelling of 155352665 in words is "one hundred fifty-five million, three hundred fifty-two thousand, six hundred sixty-five".