2645340516 has 72 divisors (see below), whose sum is σ = 8229958464. Its totient is φ = 697671360.

The previous prime is 2645340499. The next prime is 2645340557. The reversal of 2645340516 is 6150435462.

2645340516 is a `hidden beast` number, since 2 + 645 + 3 + 4 + 0 + 5 + 1 + 6 = 666.

2645340516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2645340516² = 13995652891182292512, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 400470 + ... + 407021.

Almost surely, 2^2645340516 is an apocalyptic number.

2645340516 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2645340516 is an abundant number, since it is smaller than the sum of its proper divisors (5584617948).

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

2645340516 is a wasteful number, since it uses less digits than its factorization.

2645340516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807521 (or 807516 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 2645340516 is about 51432.8738843164. The cubic root of 2645340516 is about 1383.0159684336.

Adding to 2645340516 its reverse (6150435462), we get a palindrome (8795775978).

The spelling of 2645340516 in words is "two billion, six hundred forty-five million, three hundred forty thousand, five hundred sixteen".