2021671662 has 8 divisors (see below), whose sum is σ = 4043343336. Its totient is φ = 673890552.

The previous prime is 2021671643. The next prime is 2021671741. The reversal of 2021671662 is 2661761202.

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

2021671662 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 168472633 + ... + 168472644.

It is an arithmetic number, because the mean of its divisors is an integer number (505417917).

Almost surely, 2^2021671662 is an apocalyptic number.

2021671662 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2021671662 is a wasteful number, since it uses less digits than its factorization.

2021671662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336945282.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 2021671662 is about 44963.0032582344. The cubic root of 2021671662 is about 1264.4554748895.

The spelling of 2021671662 in words is "two billion, twenty-one million, six hundred seventy-one thousand, six hundred sixty-two".