165065061506 has 8 divisors (see below), whose sum is σ = 247625554944. Its totient is φ = 82523209860.

The previous prime is 165065061503. The next prime is 165065061509. The reversal of 165065061506 is 605160560561.

It is an interprime number because it is at equal distance from previous prime (165065061503) and next prime (165065061509).

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

It is not an unprimeable number, because it can be changed into a prime (165065061503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4638290 + ... + 4673741.

It is an arithmetic number, because the mean of its divisors is an integer number (30953194368).

Almost surely, 2^165065061506 is an apocalyptic number.

165065061506 is a deficient number, since it is larger than the sum of its proper divisors (82560493438).

165065061506 is an equidigital number, since it uses as much as digits as its factorization.

165065061506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9320896.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 165065061506 in words is "one hundred sixty-five billion, sixty-five million, sixty-one thousand, five hundred six".