165960029431 has 8 divisors (see below), whose sum is σ = 189711776160. Its totient is φ = 142219075488.

The previous prime is 165960029401. The next prime is 165960029461. The reversal of 165960029431 is 134920069561.

It is an interprime number because it is at equal distance from previous prime (165960029401) and next prime (165960029461).

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

It is not a de Polignac number, because 165960029431 - 2⁵ = 165960029399 is a prime.

It is a super-2 number, since 2×165960029431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165960029401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2665216 + ... + 2726773.

It is an arithmetic number, because the mean of its divisors is an integer number (23713972020).

Almost surely, 2^165960029431 is an apocalyptic number.

165960029431 is a deficient number, since it is larger than the sum of its proper divisors (23751746729).

165960029431 is an equidigital number, since it uses as much as digits as its factorization.

165960029431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5396393.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 165960029431 in words is "one hundred sixty-five billion, nine hundred sixty million, twenty-nine thousand, four hundred thirty-one".