168999146405 has 8 divisors (see below), whose sum is σ = 203328479232. Its totient is φ = 134846314768.

The previous prime is 168999146387. The next prime is 168999146411. The reversal of 168999146405 is 504641999861.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168999146405 is a prime.

It is a super-2 number, since 2×168999146405² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44123189 + ... + 44127018.

It is an arithmetic number, because the mean of its divisors is an integer number (25416059904).

Almost surely, 2^168999146405 is an apocalyptic number.

It is an amenable number.

168999146405 is a deficient number, since it is larger than the sum of its proper divisors (34329332827).

168999146405 is an equidigital number, since it uses as much as digits as its factorization.

168999146405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88250595.

The product of its (nonzero) digits is 16796160, while the sum is 62.

The spelling of 168999146405 in words is "one hundred sixty-eight billion, nine hundred ninety-nine million, one hundred forty-six thousand, four hundred five".