161041646 has 32 divisors (see below), whose sum is σ = 263139840. Its totient is φ = 73626496.

The previous prime is 161041627. The next prime is 161041667. The reversal of 161041646 is 646140161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285761 + ... + 286323.

It is an arithmetic number, because the mean of its divisors is an integer number (8223120).

Almost surely, 2^161041646 is an apocalyptic number.

161041646 is a deficient number, since it is larger than the sum of its proper divisors (102098194).

161041646 is a wasteful number, since it uses less digits than its factorization.

161041646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 161041646 is about 12690.2185166371. The cubic root of 161041646 is about 544.0590851878.

The spelling of 161041646 in words is "one hundred sixty-one million, forty-one thousand, six hundred forty-six".