165000166610 has 8 divisors (see below), whose sum is σ = 297000299916. Its totient is φ = 66000066640.

The previous prime is 165000166607. The next prime is 165000166613. The reversal of 165000166610 is 16661000561.

It is an interprime number because it is at equal distance from previous prime (165000166607) and next prime (165000166613).

It can be written as a sum of positive squares in 2 ways, for example, as 160333773889 + 4666392721 = 400417^2 + 68311^2 .

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 (165000166613) 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, 8250008321 + ... + 8250008340.

Almost surely, 2^165000166610 is an apocalyptic number.

165000166610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165000166610 is a deficient number, since it is larger than the sum of its proper divisors (132000133306).

165000166610 is a wasteful number, since it uses less digits than its factorization.

165000166610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16500016668.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 165000166610 in words is "one hundred sixty-five billion, one hundred sixty-six thousand, six hundred ten".