161006602 has 8 divisors (see below), whose sum is σ = 242906436. Its totient is φ = 80037792.

The previous prime is 161006567. The next prime is 161006603. The reversal of 161006602 is 206600161.

It can be written as a sum of positive squares in 2 ways, for example, as 152250921 + 8755681 = 12339^2 + 2959^2 .

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

It is not an unprimeable number, because it can be changed into a prime (161006603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232323 + ... + 233014.

Almost surely, 2^161006602 is an apocalyptic number.

161006602 is a deficient number, since it is larger than the sum of its proper divisors (81899834).

161006602 is a wasteful number, since it uses less digits than its factorization.

161006602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465512.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 161006602 is about 12688.8376930277. The cubic root of 161006602 is about 544.0196183993.

Adding to 161006602 its reverse (206600161), we get a palindrome (367606763).

The spelling of 161006602 in words is "one hundred sixty-one million, six thousand, six hundred two".