168408406206629 has 4 divisors (see below), whose sum is σ = 168408632649600. Its totient is φ = 168408179763660.

The previous prime is 168408406206619. The next prime is 168408406206701. The reversal of 168408406206629 is 926602604804861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 168408406206629 - 2²⁸ = 168408137771173 is a prime.

It is a super-2 number, since 2×168408406206629² (a number of 29 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 (168408406206619) 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, 112102229 + ... + 113594570.

It is an arithmetic number, because the mean of its divisors is an integer number (42102158162400).

Almost surely, 2^{168408406206629} is an apocalyptic number.

It is an amenable number.

168408406206629 is a deficient number, since it is larger than the sum of its proper divisors (226442971).

168408406206629 is an equidigital number, since it uses as much as digits as its factorization.

168408406206629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226442970.

The product of its (nonzero) digits is 47775744, while the sum is 62.

The spelling of 168408406206629 in words is "one hundred sixty-eight trillion, four hundred eight billion, four hundred six million, two hundred six thousand, six hundred twenty-nine".