6565012623040 has 224 divisors, whose sum is σ = 17462635128000. Its totient is φ = 2336222085120.

The previous prime is 6565012623031. The next prime is 6565012623053. The reversal of 6565012623040 is 403262105656.

It is a happy number.

It is a super-2 number, since 2×6565012623040² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 6565012622984 and 6565012623002.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46337910 + ... + 46479370.

Almost surely, 2^{6565012623040} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6565012623040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8731317564000).

6565012623040 is an abundant number, since it is smaller than the sum of its proper divisors (10897622504960).

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

6565012623040 is a wasteful number, since it uses less digits than its factorization.

6565012623040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141963 (or 141953 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

Adding to 6565012623040 its reverse (403262105656), we get a palindrome (6968274728696).

The spelling of 6565012623040 in words is "six trillion, five hundred sixty-five billion, twelve million, six hundred twenty-three thousand, forty".