266724460778 has 8 divisors (see below), whose sum is σ = 417481764768. Its totient is φ = 127563872524.

The previous prime is 266724460757. The next prime is 266724460813. The reversal of 266724460778 is 877064427662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×266724460778² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2899178876 + ... + 2899178967.

It is an arithmetic number, because the mean of its divisors is an integer number (52185220596).

Almost surely, 2^266724460778 is an apocalyptic number.

266724460778 is a deficient number, since it is larger than the sum of its proper divisors (150757303990).

266724460778 is a wasteful number, since it uses less digits than its factorization.

266724460778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5798357868.

The product of its (nonzero) digits is 37933056, while the sum is 59.

The spelling of 266724460778 in words is "two hundred sixty-six billion, seven hundred twenty-four million, four hundred sixty thousand, seven hundred seventy-eight".