1266414081977 has 16 divisors (see below), whose sum is σ = 1419146506752. Its totient is φ = 1119960587520.

The previous prime is 1266414081953. The next prime is 1266414081979. The reversal of 1266414081977 is 7791804146621.

It is a cyclic number.

It is not a de Polignac number, because 1266414081977 - 2⁶ = 1266414081913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1266414081979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1912913 + ... + 2488385.

It is an arithmetic number, because the mean of its divisors is an integer number (88696656672).

Almost surely, 2^{1266414081977} is an apocalyptic number.

It is an amenable number.

1266414081977 is a deficient number, since it is larger than the sum of its proper divisors (152732424775).

1266414081977 is a wasteful number, since it uses less digits than its factorization.

1266414081977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580928.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 1266414081977 in words is "one trillion, two hundred sixty-six billion, four hundred fourteen million, eighty-one thousand, nine hundred seventy-seven".