167816405461 has 4 divisors (see below), whose sum is σ = 168043492000. Its totient is φ = 167589318924.

The previous prime is 167816405431. The next prime is 167816405473. The reversal of 167816405461 is 164504618761.

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 167816405461 - 2⁷ = 167816405333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167816405431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113542161 + ... + 113543638.

It is an arithmetic number, because the mean of its divisors is an integer number (42010873000).

Almost surely, 2^167816405461 is an apocalyptic number.

It is an amenable number.

167816405461 is a deficient number, since it is larger than the sum of its proper divisors (227086539).

167816405461 is an equidigital number, since it uses as much as digits as its factorization.

167816405461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227086538.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 167816405461 in words is "one hundred sixty-seven billion, eight hundred sixteen million, four hundred five thousand, four hundred sixty-one".