1066331464887 has 16 divisors (see below), whose sum is σ = 1533165304160. Its totient is φ = 655337112192.

The previous prime is 1066331464883. The next prime is 1066331464949. The reversal of 1066331464887 is 7884641336601.

It is not a de Polignac number, because 1066331464887 - 2² = 1066331464883 is a prime.

It is a super-2 number, since 2×1066331464887² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066331464883) 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, 18029812 + ... + 18088857.

It is an arithmetic number, because the mean of its divisors is an integer number (95822831510).

Almost surely, 2^{1066331464887} is an apocalyptic number.

1066331464887 is a deficient number, since it is larger than the sum of its proper divisors (466833839273).

1066331464887 is a wasteful number, since it uses less digits than its factorization.

1066331464887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36119442.

The product of its (nonzero) digits is 13934592, while the sum is 57.

The spelling of 1066331464887 in words is "one trillion, sixty-six billion, three hundred thirty-one million, four hundred sixty-four thousand, eight hundred eighty-seven".