162640646 has 32 divisors (see below), whose sum is σ = 295695360. Its totient is φ = 65537856.

The previous prime is 162640619. The next prime is 162640661. The reversal of 162640646 is 646046261.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34211 + ... + 38673.

It is an arithmetic number, because the mean of its divisors is an integer number (9240480).

Almost surely, 2^162640646 is an apocalyptic number.

162640646 is a deficient number, since it is larger than the sum of its proper divisors (133054714).

162640646 is a wasteful number, since it uses less digits than its factorization.

162640646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4628.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 162640646 is about 12753.0641808155. The cubic root of 162640646 is about 545.8538320734.

The spelling of 162640646 in words is "one hundred sixty-two million, six hundred forty thousand, six hundred forty-six".