165557463 has 8 divisors (see below), whose sum is σ = 221899776. Its totient is φ = 109793400.

The previous prime is 165557461. The next prime is 165557471. The reversal of 165557463 is 364755561.

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

It is not a de Polignac number, because 165557463 - 2¹ = 165557461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165557461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143893 + ... + 145038.

It is an arithmetic number, because the mean of its divisors is an integer number (27737472).

Almost surely, 2^165557463 is an apocalyptic number.

165557463 is a deficient number, since it is larger than the sum of its proper divisors (56342313).

165557463 is a wasteful number, since it uses less digits than its factorization.

165557463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289125.

The product of its digits is 378000, while the sum is 42.

The square root of 165557463 is about 12866.9134993595. The cubic root of 165557463 is about 549.0976531742.

The spelling of 165557463 in words is "one hundred sixty-five million, five hundred fifty-seven thousand, four hundred sixty-three".