153165561 has 8 divisors (see below), whose sum is σ = 204283200. Its totient is φ = 102079152.

The previous prime is 153165547. The next prime is 153165577. The reversal of 153165561 is 165561351.

153165561 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 not a de Polignac number, because 153165561 - 2⁶ = 153165497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (153165541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8515 + ... + 19463.

It is an arithmetic number, because the mean of its divisors is an integer number (25535400).

Almost surely, 2^153165561 is an apocalyptic number.

It is an amenable number.

153165561 is a deficient number, since it is larger than the sum of its proper divisors (51117639).

153165561 is a wasteful number, since it uses less digits than its factorization.

153165561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15615.

The product of its digits is 13500, while the sum is 33.

The square root of 153165561 is about 12376.0074741412. The cubic root of 153165561 is about 535.0409739486.

The spelling of 153165561 in words is "one hundred fifty-three million, one hundred sixty-five thousand, five hundred sixty-one".