1266444516056 has 8 divisors (see below), whose sum is σ = 2374583467620. Its totient is φ = 633222258024.

The previous prime is 1266444516041. The next prime is 1266444516059. The reversal of 1266444516056 is 6506154446621.

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

It is a junction number, because it is equal to n+sod(n) for n = 1266444515995 and 1266444516013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266444516059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79152782246 + ... + 79152782261.

Almost surely, 2^{1266444516056} is an apocalyptic number.

It is an amenable number.

1266444516056 is a deficient number, since it is larger than the sum of its proper divisors (1108138951564).

1266444516056 is a wasteful number, since it uses less digits than its factorization.

1266444516056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158305564513 (or 158305564509 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 50.

The spelling of 1266444516056 in words is "one trillion, two hundred sixty-six billion, four hundred forty-four million, five hundred sixteen thousand, fifty-six".