161606283430 has 16 divisors (see below), whose sum is σ = 298753238160. Its totient is φ = 62895418272.

The previous prime is 161606283401. The next prime is 161606283431. The reversal of 161606283430 is 34382606161.

It is a super-2 number, since 2×161606283430² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161606283431) 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, 218386500 + ... + 218387239.

It is an arithmetic number, because the mean of its divisors is an integer number (18672077385).

Almost surely, 2^161606283430 is an apocalyptic number.

161606283430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161606283430 is a deficient number, since it is larger than the sum of its proper divisors (137146954730).

161606283430 is a wasteful number, since it uses less digits than its factorization.

161606283430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436773783.

The product of its (nonzero) digits is 124416, while the sum is 40.

Adding to 161606283430 its reverse (34382606161), we get a palindrome (195988889591).

The spelling of 161606283430 in words is "one hundred sixty-one billion, six hundred six million, two hundred eighty-three thousand, four hundred thirty".