6537557145 has 256 divisors, whose sum is σ = 14432256000. Its totient is φ = 2461003776.

The previous prime is 6537557123. The next prime is 6537557153. The reversal of 6537557145 is 5417557356.

It is not a de Polignac number, because 6537557145 - 2¹¹ = 6537555097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6537557094 and 6537557103.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 225432991 + ... + 225433019.

It is an arithmetic number, because the mean of its divisors is an integer number (56376000).

Almost surely, 2^6537557145 is an apocalyptic number.

It is an amenable number.

6537557145 is an abundant number, since it is smaller than the sum of its proper divisors (7894698855).

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

6537557145 is a wasteful number, since it uses less digits than its factorization.

6537557145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 103 counting only the distinct ones).

The product of its digits is 2205000, while the sum is 48.

The square root of 6537557145 is about 80855.1615235540. The cubic root of 6537557145 is about 1869.8430997835.

The spelling of 6537557145 in words is "six billion, five hundred thirty-seven million, five hundred fifty-seven thousand, one hundred forty-five".