6562066581940 has 48 divisors (see below), whose sum is σ = 14133379030848. Its totient is φ = 2557863028224.

The previous prime is 6562066581937. The next prime is 6562066582037. The reversal of 6562066581940 is 491856602656.

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, 8438602 + ... + 9183361.

It is an arithmetic number, because the mean of its divisors is an integer number (294445396476).

Almost surely, 2^{6562066581940} is an apocalyptic number.

It is an amenable number.

6562066581940 is an abundant number, since it is smaller than the sum of its proper divisors (7571312448908).

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

6562066581940 is a wasteful number, since it uses less digits than its factorization.

6562066581940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17622448 (or 17622446 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 58.

The spelling of 6562066581940 in words is "six trillion, five hundred sixty-two billion, sixty-six million, five hundred eighty-one thousand, nine hundred forty".