161173644153462 has 256 divisors, whose sum is σ = 390602096640000. Its totient is φ = 49074793073280.

The previous prime is 161173644153449. The next prime is 161173644153463. The reversal of 161173644153462 is 264351446371161.

161173644153462 is a `hidden beast` number, since 1 + 6 + 1 + 1 + 7 + 3 + 6 + 4 + 41 + 534 + 62 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 161173644153399 and 161173644153408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161173644153463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 33867121839 + ... + 33867126597.

It is an arithmetic number, because the mean of its divisors is an integer number (1525789440000).

Almost surely, 2^{161173644153462} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161173644153462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195301048320000).

161173644153462 is an abundant number, since it is smaller than the sum of its proper divisors (229428452486538).

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

161173644153462 is a wasteful number, since it uses less digits than its factorization.

161173644153462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8496 (or 8490 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 161173644153462 in words is "one hundred sixty-one trillion, one hundred seventy-three billion, six hundred forty-four million, one hundred fifty-three thousand, four hundred sixty-two".