6415562661541 has 24 divisors (see below), whose sum is σ = 7134012459392. Its totient is φ = 5764508640000.

The previous prime is 6415562661503. The next prime is 6415562661559. The reversal of 6415562661541 is 1451662655146.

It is not a de Polignac number, because 6415562661541 - 2²⁹ = 6415025790629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6415562661041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8450566 + ... + 9178408.

Almost surely, 2^{6415562661541} is an apocalyptic number.

It is an amenable number.

6415562661541 is a deficient number, since it is larger than the sum of its proper divisors (718449797851).

6415562661541 is a wasteful number, since it uses less digits than its factorization.

6415562661541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728713 (or 728702 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 52.

The spelling of 6415562661541 in words is "six trillion, four hundred fifteen billion, five hundred sixty-two million, six hundred sixty-one thousand, five hundred forty-one".