2145302064 has 80 divisors (see below), whose sum is σ = 6215495040. Its totient is φ = 708402240.

The previous prime is 2145302053. The next prime is 2145302099. The reversal of 2145302064 is 4602035412.

2145302064 is a `hidden beast` number, since 2 + 1 + 453 + 0 + 206 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23019 + ... + 69429.

It is an arithmetic number, because the mean of its divisors is an integer number (77693688).

Almost surely, 2^2145302064 is an apocalyptic number.

2145302064 is a gapful number since it is divisible by the number (24) 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 2145302064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3107747520).

2145302064 is an abundant number, since it is smaller than the sum of its proper divisors (4070192976).

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

2145302064 is a wasteful number, since it uses less digits than its factorization.

2145302064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46535 (or 46523 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2145302064 is about 46317.4056268267. The cubic root of 2145302064 is about 1289.7221251130.

Adding to 2145302064 its reverse (4602035412), we get a palindrome (6747337476).

The spelling of 2145302064 in words is "two billion, one hundred forty-five million, three hundred two thousand, sixty-four".