1171266048 has 160 divisors (see below), whose sum is σ = 3492931200. Its totient is φ = 387514368.

The previous prime is 1171265999. The next prime is 1171266049. The reversal of 1171266048 is 8406621711.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1171266049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2667813 + ... + 2668251.

It is an arithmetic number, because the mean of its divisors is an integer number (21830820).

Almost surely, 2^1171266048 is an apocalyptic number.

1171266048 is a gapful number since it is divisible by the number (18) 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 1171266048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1746465600).

1171266048 is an abundant number, since it is smaller than the sum of its proper divisors (2321665152).

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

1171266048 is an equidigital number, since it uses as much as digits as its factorization.

1171266048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1171266048 is about 34223.7643750655. The cubic root of 1171266048 is about 1054.1081830946.

Adding to 1171266048 its product of nonzero digits (16128), we get a square (1171282176 = 34224²).

Adding to 1171266048 its reverse (8406621711), we get a palindrome (9577887759).

The spelling of 1171266048 in words is "one billion, one hundred seventy-one million, two hundred sixty-six thousand, forty-eight".