1050321664 has 216 divisors, whose sum is σ = 2620963968. Its totient is φ = 418037760.

The previous prime is 1050321661. The next prime is 1050321667. The reversal of 1050321664 is 4661230501.

It is an interprime number because it is at equal distance from previous prime (1050321661) and next prime (1050321667).

It is a super-2 number, since 2×1050321664² = 2206351195735457792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (1050321661) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 14387932 + ... + 14388004.

Almost surely, 2^1050321664 is an apocalyptic number.

1050321664 is a gapful number since it is divisible by the number (14) 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 1050321664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1310481984).

1050321664 is an abundant number, since it is smaller than the sum of its proper divisors (1570642304).

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

1050321664 is an equidigital number, since it uses as much as digits as its factorization.

1050321664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1050321664 is about 32408.6664952448. Note that the first 3 decimals coincide. The cubic root of 1050321664 is about 1016.5001360967.

The spelling of 1050321664 in words is "one billion, fifty million, three hundred twenty-one thousand, six hundred sixty-four".