161366122535 has 32 divisors (see below), whose sum is σ = 210641083200. Its totient is φ = 118176233472.

The previous prime is 161366122457. The next prime is 161366122591. The reversal of 161366122535 is 535221663161.

It is not a de Polignac number, because 161366122535 - 2¹⁴ = 161366106151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161366122492 and 161366122501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12312416 + ... + 12325514.

It is an arithmetic number, because the mean of its divisors is an integer number (6582533850).

Almost surely, 2^161366122535 is an apocalyptic number.

161366122535 is a deficient number, since it is larger than the sum of its proper divisors (49274960665).

161366122535 is a wasteful number, since it uses less digits than its factorization.

161366122535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17075.

The product of its digits is 194400, while the sum is 41.

Adding to 161366122535 its reverse (535221663161), we get a palindrome (696587785696).

The spelling of 161366122535 in words is "one hundred sixty-one billion, three hundred sixty-six million, one hundred twenty-two thousand, five hundred thirty-five".