1266852154242 has 16 divisors (see below), whose sum is σ = 2534152740192. Its totient is φ = 422209312800.

The previous prime is 1266852154231. The next prime is 1266852154289. The reversal of 1266852154242 is 2424512586621.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1266852154191 and 1266852154200.

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, 18647923 + ... + 18715734.

It is an arithmetic number, because the mean of its divisors is an integer number (158384546262).

Almost surely, 2^{1266852154242} is an apocalyptic number.

1266852154242 is an abundant number, since it is smaller than the sum of its proper divisors (1267300585950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1266852154242 is a wasteful number, since it uses less digits than its factorization.

1266852154242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37369313.

The product of its digits is 1843200, while the sum is 48.

The spelling of 1266852154242 in words is "one trillion, two hundred sixty-six billion, eight hundred fifty-two million, one hundred fifty-four thousand, two hundred forty-two".