245436374502664 has 8 divisors (see below), whose sum is σ = 460193202192510. Its totient is φ = 122718187251328.

The previous prime is 245436374502623. The next prime is 245436374502733. The reversal of 245436374502664 is 466205473634542.

It can be written as a sum of positive squares in only one way, i.e., 191895690380164 + 53540684122500 = 13852642^2 + 7317150^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15339773406409 + ... + 15339773406424.

Almost surely, 2^{245436374502664} is an apocalyptic number.

It is an amenable number.

245436374502664 is a deficient number, since it is larger than the sum of its proper divisors (214756827689846).

245436374502664 is a wasteful number, since it uses less digits than its factorization.

245436374502664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30679546812839 (or 30679546812835 counting only the distinct ones).

The product of its (nonzero) digits is 348364800, while the sum is 61.

The spelling of 245436374502664 in words is "two hundred forty-five trillion, four hundred thirty-six billion, three hundred seventy-four million, five hundred two thousand, six hundred sixty-four".