160661003 has 24 divisors (see below), whose sum is σ = 176889216. Its totient is φ = 145728000.

The previous prime is 160660991. The next prime is 160661009. The reversal of 160661003 is 300166061.

It is not a de Polignac number, because 160661003 - 2⁶ = 160660939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 160661003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160661009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1590653 + ... + 1590753.

It is an arithmetic number, because the mean of its divisors is an integer number (7370384).

Almost surely, 2^160661003 is an apocalyptic number.

160661003 is a deficient number, since it is larger than the sum of its proper divisors (16228213).

160661003 is a wasteful number, since it uses less digits than its factorization.

160661003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 160661003 is about 12675.2121481260. The cubic root of 160661003 is about 543.6300954092.

The spelling of 160661003 in words is "one hundred sixty million, six hundred sixty-one thousand, three".