266804705577394 has 16 divisors (see below), whose sum is σ = 421271050409280. Its totient is φ = 126381037529520.

The previous prime is 266804705577341. The next prime is 266804705577457. The reversal of 266804705577394 is 493775507408662.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36756379 + ... + 43412449.

It is an arithmetic number, because the mean of its divisors is an integer number (26329440650580).

Almost surely, 2^{266804705577394} is an apocalyptic number.

266804705577394 is a deficient number, since it is larger than the sum of its proper divisors (154466344831886).

266804705577394 is a wasteful number, since it uses less digits than its factorization.

266804705577394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7710945.

The product of its (nonzero) digits is 2133734400, while the sum is 73.

The spelling of 266804705577394 in words is "two hundred sixty-six trillion, eight hundred four billion, seven hundred five million, five hundred seventy-seven thousand, three hundred ninety-four".