161226536622 has 8 divisors (see below), whose sum is σ = 322453073256. Its totient is φ = 53742178872.

The previous prime is 161226536609. The next prime is 161226536641. The reversal of 161226536622 is 226635622161.

It is a sphenic number, since it is the product of 3 distinct primes.

161226536622 is an admirable number.

It is a super-2 number, since 2×161226536622² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13435544713 + ... + 13435544724.

It is an arithmetic number, because the mean of its divisors is an integer number (40306634157).

Almost surely, 2^161226536622 is an apocalyptic number.

161226536622 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

161226536622 is a wasteful number, since it uses less digits than its factorization.

161226536622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26871089442.

The product of its digits is 311040, while the sum is 42.

The spelling of 161226536622 in words is "one hundred sixty-one billion, two hundred twenty-six million, five hundred thirty-six thousand, six hundred twenty-two".