161706003 has 8 divisors (see below), whose sum is σ = 216090000. Its totient is φ = 107563008.

The previous prime is 161705987. The next prime is 161706029. The reversal of 161706003 is 300607161.

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

It is not a de Polignac number, because 161706003 - 2⁴ = 161705987 is a prime.

It is a super-2 number, since 2×161706003² = 52297662812472018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161706043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58678 + ... + 61371.

It is an arithmetic number, because the mean of its divisors is an integer number (27011250).

Almost surely, 2^161706003 is an apocalyptic number.

161706003 is a deficient number, since it is larger than the sum of its proper divisors (54383997).

161706003 is a wasteful number, since it uses less digits than its factorization.

161706003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120501.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 161706003 is about 12716.3675237860. The cubic root of 161706003 is about 544.8062077874.

The spelling of 161706003 in words is "one hundred sixty-one million, seven hundred six thousand, three".