1172167216 has 160 divisors (see below), whose sum is σ = 2710112256. Its totient is φ = 485760000.

The previous prime is 1172167121. The next prime is 1172167223. The reversal of 1172167216 is 6127612711.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11605566 + ... + 11605666.

Almost surely, 2^1172167216 is an apocalyptic number.

1172167216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1172167216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1355056128).

1172167216 is an abundant number, since it is smaller than the sum of its proper divisors (1537945040).

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

1172167216 is a wasteful number, since it uses less digits than its factorization.

1172167216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 245 counting only the distinct ones).

The product of its digits is 7056, while the sum is 34.

The square root of 1172167216 is about 34236.9276658990. The cubic root of 1172167216 is about 1054.3784561735.

Adding to 1172167216 its reverse (6127612711), we get a palindrome (7299779927).

The spelling of 1172167216 in words is "one billion, one hundred seventy-two million, one hundred sixty-seven thousand, two hundred sixteen".