6340356561537 has 12 divisors (see below), whose sum is σ = 9640308222480. Its totient is φ = 4004435722968.

The previous prime is 6340356561523. The next prime is 6340356561541. The reversal of 6340356561537 is 7351656530436.

6340356561537 is a `hidden beast` number, since 6 + 3 + 4 + 0 + 3 + 56 + 56 + 1 + 537 = 666.

It is not a de Polignac number, because 6340356561537 - 2⁴ = 6340356561521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6340356561337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18539054103 + ... + 18539054444.

It is an arithmetic number, because the mean of its divisors is an integer number (803359018540).

Almost surely, 2^{6340356561537} is an apocalyptic number.

It is an amenable number.

6340356561537 is a deficient number, since it is larger than the sum of its proper divisors (3299951660943).

6340356561537 is a wasteful number, since it uses less digits than its factorization.

6340356561537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37078108572 (or 37078108569 counting only the distinct ones).

The product of its (nonzero) digits is 20412000, while the sum is 54.

The spelling of 6340356561537 in words is "six trillion, three hundred forty billion, three hundred fifty-six million, five hundred sixty-one thousand, five hundred thirty-seven".