1643167296 has 105 divisors (see below), whose sum is σ = 4879529611. Its totient is φ = 546749568.

The previous prime is 1643167277. The next prime is 1643167297. The reversal of 1643167296 is 6927613461.

The square root of 1643167296 is 40536.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1643167297) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2918311 + ... + 2918873.

Almost surely, 2^1643167296 is an apocalyptic number.

1643167296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1643167296 is the 40536-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1643167296

1643167296 is an abundant number, since it is smaller than the sum of its proper divisors (3236362315).

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

1643167296 is an frugal number, since it uses more digits than its factorization.

1643167296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150 (or 568 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The cubic root of 1643167296 is about 1180.0323882712.

The spelling of 1643167296 in words is "one billion, six hundred forty-three million, one hundred sixty-seven thousand, two hundred ninety-six".