165914994 has 32 divisors (see below), whose sum is σ = 379653120. Its totient is φ = 47351952.

The previous prime is 165914971. The next prime is 165915017. The reversal of 165914994 is 499419561.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (165914971) and next prime (165915017).

Its product of digits (349920) is a multiple of the sum of its prime divisors (4374).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52347 + ... + 55425.

It is an arithmetic number, because the mean of its divisors is an integer number (11864160).

Almost surely, 2^165914994 is an apocalyptic number.

165914994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

165914994 is an abundant number, since it is smaller than the sum of its proper divisors (213738126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165914994 is a wasteful number, since it uses less digits than its factorization.

165914994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4374.

The product of its digits is 349920, while the sum is 48.

The square root of 165914994 is about 12880.7994317123. The cubic root of 165914994 is about 549.4926384514.

It can be divided in two parts, 1659 and 14994, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 165914994 in words is "one hundred sixty-five million, nine hundred fourteen thousand, nine hundred ninety-four".