161573252335 has 24 divisors (see below), whose sum is σ = 214392735648. Its totient is φ = 116804107200.

The previous prime is 161573252287. The next prime is 161573252341. The reversal of 161573252335 is 533252375161.

It is not a de Polignac number, because 161573252335 - 2¹⁵ = 161573219567 is a prime.

It is a super-2 number, since 2×161573252335² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161573252291 and 161573252300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 698556 + ... + 900625.

It is an arithmetic number, because the mean of its divisors is an integer number (8933030652).

Almost surely, 2^161573252335 is an apocalyptic number.

161573252335 is a deficient number, since it is larger than the sum of its proper divisors (52819483313).

161573252335 is a wasteful number, since it uses less digits than its factorization.

161573252335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599375 (or 1599364 counting only the distinct ones).

The product of its digits is 567000, while the sum is 43.

The spelling of 161573252335 in words is "one hundred sixty-one billion, five hundred seventy-three million, two hundred fifty-two thousand, three hundred thirty-five".