165064555 has 8 divisors (see below), whose sum is σ = 198308592. Its totient is φ = 131897568.

The previous prime is 165064531. The next prime is 165064591. The reversal of 165064555 is 555460561.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165064555 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, 14437 + ... + 23206.

It is an arithmetic number, because the mean of its divisors is an integer number (24788574).

Almost surely, 2^165064555 is an apocalyptic number.

165064555 is a deficient number, since it is larger than the sum of its proper divisors (33244037).

165064555 is an equidigital number, since it uses as much as digits as its factorization.

165064555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38525.

The product of its (nonzero) digits is 90000, while the sum is 37.

The square root of 165064555 is about 12847.7451329017. The cubic root of 165064555 is about 548.5521755505.

The spelling of 165064555 in words is "one hundred sixty-five million, sixty-four thousand, five hundred fifty-five".