1667672076 has 72 divisors (see below), whose sum is σ = 4594207296. Its totient is φ = 469355040.

The previous prime is 1667672023. The next prime is 1667672077. The reversal of 1667672076 is 6702767661.

It is a super-2 number, since 2×1667672076² = 5562260306140299552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1667672077) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 18231 + ... + 60561.

Almost surely, 2^1667672076 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1667672076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2297103648).

1667672076 is an abundant number, since it is smaller than the sum of its proper divisors (2926535220).

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

1667672076 is a wasteful number, since it uses less digits than its factorization.

1667672076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42419 (or 42410 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 48.

The square root of 1667672076 is about 40837.1408891465. The cubic root of 1667672076 is about 1185.8694624881.

The spelling of 1667672076 in words is "one billion, six hundred sixty-seven million, six hundred seventy-two thousand, seventy-six".