161066622 has 32 divisors (see below), whose sum is σ = 327444480. Its totient is φ = 52809120.

The previous prime is 161066621. The next prime is 161066623. The reversal of 161066622 is 226660161.

It is an interprime number because it is at equal distance from previous prime (161066621) and next prime (161066623).

It is a self number, because there is not a number n which added to its sum of digits gives 161066622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161066621) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 176347 + ... + 177257.

It is an arithmetic number, because the mean of its divisors is an integer number (10232640).

Almost surely, 2^161066622 is an apocalyptic number.

161066622 is an abundant number, since it is smaller than the sum of its proper divisors (166377858).

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

161066622 is a wasteful number, since it uses less digits than its factorization.

161066622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 161066622 is about 12691.2025434945. The cubic root of 161066622 is about 544.0872098326.

The spelling of 161066622 in words is "one hundred sixty-one million, sixty-six thousand, six hundred twenty-two".