495130065521 has 32 divisors (see below), whose sum is σ = 610975088640. Its totient is φ = 390733844544.

The previous prime is 495130065517. The next prime is 495130065523. The reversal of 495130065521 is 125560031594.

It is not a de Polignac number, because 495130065521 - 2² = 495130065517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (495130065523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138186896 + ... + 138190478.

It is an arithmetic number, because the mean of its divisors is an integer number (19092971520).

Almost surely, 2^495130065521 is an apocalyptic number.

It is an amenable number.

495130065521 is a deficient number, since it is larger than the sum of its proper divisors (115845023119).

495130065521 is a wasteful number, since it uses less digits than its factorization.

495130065521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7125.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 495130065521 in words is "four hundred ninety-five billion, one hundred thirty million, sixty-five thousand, five hundred twenty-one".