165670612766 has 4 divisors (see below), whose sum is σ = 248505919152. Its totient is φ = 82835306382.

The previous prime is 165670612763. The next prime is 165670612787. The reversal of 165670612766 is 667216076561.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165670612763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41417653190 + ... + 41417653193.

It is an arithmetic number, because the mean of its divisors is an integer number (62126479788).

Almost surely, 2^165670612766 is an apocalyptic number.

165670612766 is a deficient number, since it is larger than the sum of its proper divisors (82835306386).

165670612766 is an equidigital number, since it uses as much as digits as its factorization.

165670612766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82835306385.

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 165670612766 in words is "one hundred sixty-five billion, six hundred seventy million, six hundred twelve thousand, seven hundred sixty-six".