6541552405464 has 32 divisors (see below), whose sum is σ = 16621977427440. Its totient is φ = 2144771280000.

The previous prime is 6541552405447. The next prime is 6541552405469. The reversal of 6541552405464 is 4645042551456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6541552405469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2234135287 + ... + 2234138214.

Almost surely, 2^{6541552405464} is an apocalyptic number.

It is an amenable number.

6541552405464 is an abundant number, since it is smaller than the sum of its proper divisors (10080425021976).

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

6541552405464 is a wasteful number, since it uses less digits than its factorization.

6541552405464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4468273571 (or 4468273567 counting only the distinct ones).

The product of its (nonzero) digits is 11520000, while the sum is 51.

The spelling of 6541552405464 in words is "six trillion, five hundred forty-one billion, five hundred fifty-two million, four hundred five thousand, four hundred sixty-four".