4897557103666 has 4 divisors (see below), whose sum is σ = 7346335655502. Its totient is φ = 2448778551832.

The previous prime is 4897557103519. The next prime is 4897557103679. The reversal of 4897557103666 is 6663017557984.

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

It can be written as a sum of positive squares in only one way, i.e., 4886199725625 + 11357378041 = 2210475^2 + 106571^2 .

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1224389275915 + ... + 1224389275918.

Almost surely, 2^{4897557103666} is an apocalyptic number.

4897557103666 is a deficient number, since it is larger than the sum of its proper divisors (2448778551836).

4897557103666 is a wasteful number, since it uses less digits than its factorization.

4897557103666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2448778551835.

The product of its (nonzero) digits is 228614400, while the sum is 67.

The spelling of 4897557103666 in words is "four trillion, eight hundred ninety-seven billion, five hundred fifty-seven million, one hundred three thousand, six hundred sixty-six".