161659166304 has 48 divisors (see below), whose sum is σ = 426808276272. Its totient is φ = 53574901248.

The previous prime is 161659166281. The next prime is 161659166341. The reversal of 161659166304 is 403661956161.

161659166304 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×161659166304² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4850299 + ... + 4883514.

It is an arithmetic number, because the mean of its divisors is an integer number (8891839089).

Almost surely, 2^161659166304 is an apocalyptic number.

It is an amenable number.

161659166304 is an abundant number, since it is smaller than the sum of its proper divisors (265149109968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161659166304 is a wasteful number, since it uses less digits than its factorization.

161659166304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9733999 (or 9733991 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 161659166304 in words is "one hundred sixty-one billion, six hundred fifty-nine million, one hundred sixty-six thousand, three hundred four".