1466688538857 has 16 divisors (see below), whose sum is σ = 1957290350400. Its totient is φ = 976939704000.

The previous prime is 1466688538811. The next prime is 1466688538871. The reversal of 1466688538857 is 7588358866641.

It is not a de Polignac number, because 1466688538857 - 2²³ = 1466680150249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1466688538807) 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, 70169394 + ... + 70190292.

It is an arithmetic number, because the mean of its divisors is an integer number (122330646900).

Almost surely, 2^{1466688538857} is an apocalyptic number.

It is an amenable number.

1466688538857 is a deficient number, since it is larger than the sum of its proper divisors (490601811543).

1466688538857 is a wasteful number, since it uses less digits than its factorization.

1466688538857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40184.

The product of its digits is 1857945600, while the sum is 75.

The spelling of 1466688538857 in words is "one trillion, four hundred sixty-six billion, six hundred eighty-eight million, five hundred thirty-eight thousand, eight hundred fifty-seven".