2067671640 has 32 divisors (see below), whose sum is σ = 6203015280. Its totient is φ = 551379072.

The previous prime is 2067671623. The next prime is 2067671689. The reversal of 2067671640 is 461767602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8615179 + ... + 8615418.

Almost surely, 2^2067671640 is an apocalyptic number.

2067671640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2067671640 is an abundant number, since it is smaller than the sum of its proper divisors (4135343640).

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

2067671640 is a wasteful number, since it uses less digits than its factorization.

2067671640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17230611 (or 17230607 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 2067671640 is about 45471.6575462122. The cubic root of 2067671640 is about 1273.9738795128.

The spelling of 2067671640 in words is "two billion, sixty-seven million, six hundred seventy-one thousand, six hundred forty".