1667074368 has 112 divisors (see below), whose sum is σ = 4605471104. Its totient is φ = 531671040.

The previous prime is 1667074319. The next prime is 1667074373. The reversal of 1667074368 is 8634707661.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 431421 + ... + 435267.

Almost surely, 2^1667074368 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 1667074368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2302735552).

1667074368 is an abundant number, since it is smaller than the sum of its proper divisors (2938396736).

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

1667074368 is a wasteful number, since it uses less digits than its factorization.

1667074368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3960 (or 3950 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The square root of 1667074368 is about 40829.8220422279. The cubic root of 1667074368 is about 1185.7277702909.

The spelling of 1667074368 in words is "one billion, six hundred sixty-seven million, seventy-four thousand, three hundred sixty-eight".