657625613016241 has 4 divisors (see below), whose sum is σ = 657658057933300. Its totient is φ = 657593168099184.

The previous prime is 657625613016199. The next prime is 657625613016269. The reversal of 657625613016241 is 142610316526756.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 595051184856241 + 62574428160000 = 24393671^2 + 7910400^2 .

It is a cyclic number.

It is not a de Polignac number, because 657625613016241 - 2⁹ = 657625613015729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (657625613016041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16222428126 + ... + 16222468663.

It is an arithmetic number, because the mean of its divisors is an integer number (164414514483325).

Almost surely, 2^{657625613016241} is an apocalyptic number.

It is an amenable number.

657625613016241 is a deficient number, since it is larger than the sum of its proper divisors (32444917059).

657625613016241 is a wasteful number, since it uses less digits than its factorization.

657625613016241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32444917058.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 657625613016241 in words is "six hundred fifty-seven trillion, six hundred twenty-five billion, six hundred thirteen million, sixteen thousand, two hundred forty-one".