161006424 has 32 divisors (see below), whose sum is σ = 407616000. Its totient is φ = 52988832.

The previous prime is 161006411. The next prime is 161006441. The reversal of 161006424 is 424600161.

It is a super-3 number, since 3×161006424³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 161006394 and 161006403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40564 + ... + 44355.

It is an arithmetic number, because the mean of its divisors is an integer number (12738000).

Almost surely, 2^161006424 is an apocalyptic number.

It is an amenable number.

161006424 is an abundant number, since it is smaller than the sum of its proper divisors (246609576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161006424 is a wasteful number, since it uses less digits than its factorization.

161006424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85007 (or 85003 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 161006424 is about 12688.8306789869. The cubic root of 161006424 is about 544.0194179199.

Adding to 161006424 its reverse (424600161), we get a palindrome (585606585).

The spelling of 161006424 in words is "one hundred sixty-one million, six thousand, four hundred twenty-four".