161545622 has 8 divisors (see below), whose sum is σ = 276935376. Its totient is φ = 69233832.

The previous prime is 161545603. The next prime is 161545633. The reversal of 161545622 is 226545161.

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

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, 5769473 + ... + 5769500.

It is an arithmetic number, because the mean of its divisors is an integer number (34616922).

Almost surely, 2^161545622 is an apocalyptic number.

161545622 is a deficient number, since it is larger than the sum of its proper divisors (115389754).

161545622 is a wasteful number, since it uses less digits than its factorization.

161545622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11538982.

The product of its digits is 14400, while the sum is 32.

The square root of 161545622 is about 12710.0598739738. The cubic root of 161545622 is about 544.6260341686.

The spelling of 161545622 in words is "one hundred sixty-one million, five hundred forty-five thousand, six hundred twenty-two".