6622137645 has 16 divisors (see below), whose sum is σ = 10602297600. Its totient is φ = 3529514304.

The previous prime is 6622137637. The next prime is 6622137661. The reversal of 6622137645 is 5467312266.

It is not a de Polignac number, because 6622137645 - 2³ = 6622137637 is a prime.

It is a super-3 number, since 3×6622137645³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 6622137597 and 6622137606.

It is a congruent number.

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, 119269 + ... + 165738.

It is an arithmetic number, because the mean of its divisors is an integer number (662643600).

Almost surely, 2^6622137645 is an apocalyptic number.

It is an amenable number.

6622137645 is a deficient number, since it is larger than the sum of its proper divisors (3980159955).

6622137645 is a wasteful number, since it uses less digits than its factorization.

6622137645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286564.

The product of its digits is 362880, while the sum is 42.

The square root of 6622137645 is about 81376.5177738640. The cubic root of 6622137645 is about 1877.8723520253.

The spelling of 6622137645 in words is "six billion, six hundred twenty-two million, one hundred thirty-seven thousand, six hundred forty-five".