1122545664 has 156 divisors (see below), whose sum is σ = 3334195696. Its totient is φ = 363626496.

The previous prime is 1122545657. The next prime is 1122545693. The reversal of 1122545664 is 4665452211.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1363557 + ... + 1364379.

Almost surely, 2^1122545664 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 1122545664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1667097848).

1122545664 is an abundant number, since it is smaller than the sum of its proper divisors (2211650032).

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

1122545664 is an equidigital number, since it uses as much as digits as its factorization.

1122545664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890 (or 865 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 1122545664 is about 33504.4126049092. The cubic root of 1122545664 is about 1039.2850312756.

Adding to 1122545664 its reverse (4665452211), we get a palindrome (5787997875).

The spelling of 1122545664 in words is "one billion, one hundred twenty-two million, five hundred forty-five thousand, six hundred sixty-four".