161841764858606 has 16 divisors (see below), whose sum is σ = 277557813707616. Its totient is φ = 69332059309056.

The previous prime is 161841764858569. The next prime is 161841764858633. The reversal of 161841764858606 is 606858467148161.

It is a self number, because there is not a number n which added to its sum of digits gives 161841764858606.

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, 2391386531 + ... + 2391454206.

It is an arithmetic number, because the mean of its divisors is an integer number (17347363356726).

Almost surely, 2^{161841764858606} is an apocalyptic number.

161841764858606 is a deficient number, since it is larger than the sum of its proper divisors (115716048849010).

161841764858606 is a wasteful number, since it uses less digits than its factorization.

161841764858606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782843163.

The product of its (nonzero) digits is 371589120, while the sum is 71.

The spelling of 161841764858606 in words is "one hundred sixty-one trillion, eight hundred forty-one billion, seven hundred sixty-four million, eight hundred fifty-eight thousand, six hundred six".