230304304661557 has 32 divisors (see below), whose sum is σ = 285309997830144. Its totient is φ = 181620946953600.

The previous prime is 230304304661447. The next prime is 230304304661569. The reversal of 230304304661557 is 755166403403032.

It is not a de Polignac number, because 230304304661557 - 2²³ = 230304296272949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230304304661557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230304304661597) 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, 245230663 + ... + 246168004.

It is an arithmetic number, because the mean of its divisors is an integer number (8915937432192).

Almost surely, 2^{230304304661557} is an apocalyptic number.

It is an amenable number.

230304304661557 is a deficient number, since it is larger than the sum of its proper divisors (55005693168587).

230304304661557 is a wasteful number, since it uses less digits than its factorization.

230304304661557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491398809.

The product of its (nonzero) digits is 5443200, while the sum is 49.

The spelling of 230304304661557 in words is "two hundred thirty trillion, three hundred four billion, three hundred four million, six hundred sixty-one thousand, five hundred fifty-seven".