6215457562561 has 16 divisors (see below), whose sum is σ = 6726170949120. Its totient is φ = 5709421290240.

The previous prime is 6215457562537. The next prime is 6215457562627. The reversal of 6215457562561 is 1652657545126.

It is a cyclic number.

It is not a de Polignac number, because 6215457562561 - 2²³ = 6215449173953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6215457562361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7152606 + ... + 7974376.

It is an arithmetic number, because the mean of its divisors is an integer number (420385684320).

Almost surely, 2^{6215457562561} is an apocalyptic number.

It is an amenable number.

6215457562561 is a deficient number, since it is larger than the sum of its proper divisors (510713386559).

6215457562561 is a wasteful number, since it uses less digits than its factorization.

6215457562561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824616.

The product of its digits is 15120000, while the sum is 55.

The spelling of 6215457562561 in words is "six trillion, two hundred fifteen billion, four hundred fifty-seven million, five hundred sixty-two thousand, five hundred sixty-one".