165729527553 has 8 divisors (see below), whose sum is σ = 221033109600. Its totient is φ = 110456148608.

The previous prime is 165729527533. The next prime is 165729527603. The reversal of 165729527553 is 355725927561.

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 165729527553 - 2⁸ = 165729527297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165729527493 and 165729527502.

It is not an unprimeable number, because it can be changed into a prime (165729527533) 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, 7537968 + ... + 7559921.

It is an arithmetic number, because the mean of its divisors is an integer number (27629138700).

Almost surely, 2^165729527553 is an apocalyptic number.

It is an amenable number.

165729527553 is a deficient number, since it is larger than the sum of its proper divisors (55303582047).

165729527553 is a wasteful number, since it uses less digits than its factorization.

165729527553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15101551.

The product of its digits is 19845000, while the sum is 57.

The spelling of 165729527553 in words is "one hundred sixty-five billion, seven hundred twenty-nine million, five hundred twenty-seven thousand, five hundred fifty-three".