161022537732 has 24 divisors (see below), whose sum is σ = 429393434176. Its totient is φ = 46006439328.

The previous prime is 161022537721. The next prime is 161022537743. The reversal of 161022537732 is 237735220161.

It is an interprime number because it is at equal distance from previous prime (161022537721) and next prime (161022537743).

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, 958467403 + ... + 958467570.

Almost surely, 2^161022537732 is an apocalyptic number.

161022537732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161022537732 is an abundant number, since it is smaller than the sum of its proper divisors (268370896444).

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

161022537732 is a wasteful number, since it uses less digits than its factorization.

161022537732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916934987 (or 1916934985 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

Adding to 161022537732 its reverse (237735220161), we get a palindrome (398757757893).

The spelling of 161022537732 in words is "one hundred sixty-one billion, twenty-two million, five hundred thirty-seven thousand, seven hundred thirty-two".