161226627706705 has 32 divisors (see below), whose sum is σ = 223478002702080. Its totient is φ = 110357159301120.

The previous prime is 161226627706691. The next prime is 161226627706723. The reversal of 161226627706705 is 507607726622161.

It is not a de Polignac number, because 161226627706705 - 2¹⁹ = 161226627182417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161226627706705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92049916 + ... + 93785074.

It is an arithmetic number, because the mean of its divisors is an integer number (6983687584440).

Almost surely, 2^{161226627706705} is an apocalyptic number.

It is an amenable number.

161226627706705 is a deficient number, since it is larger than the sum of its proper divisors (62251374995375).

161226627706705 is a wasteful number, since it uses less digits than its factorization.

161226627706705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834569.

The product of its (nonzero) digits is 17781120, while the sum is 58.

The spelling of 161226627706705 in words is "one hundred sixty-one trillion, two hundred twenty-six billion, six hundred twenty-seven million, seven hundred six thousand, seven hundred five".