2645331330320 has 400 divisors, whose sum is σ = 7607295863808. Its totient is φ = 853920506880.

The previous prime is 2645331330293. The next prime is 2645331330347. The reversal of 2645331330320 is 230331335462.

It is an interprime number because it is at equal distance from previous prime (2645331330293) and next prime (2645331330347).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 220309757 + ... + 220321763.

Almost surely, 2^{2645331330320} is an apocalyptic number.

2645331330320 is a gapful number since it is divisible by the number (20) 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 2645331330320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3803647931904).

2645331330320 is an abundant number, since it is smaller than the sum of its proper divisors (4961964533488).

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

2645331330320 is a wasteful number, since it uses less digits than its factorization.

2645331330320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12116 (or 12089 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 35.

Adding to 2645331330320 its reverse (230331335462), we get a palindrome (2875662665782).

The spelling of 2645331330320 in words is "two trillion, six hundred forty-five billion, three hundred thirty-one million, three hundred thirty thousand, three hundred twenty".