1006655005666 has 16 divisors (see below), whose sum is σ = 1575712137024. Its totient is φ = 481419799344.

The previous prime is 1006655005651. The next prime is 1006655005667. The reversal of 1006655005666 is 6665005566001.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (1006655005667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411625 + ... + 1477411.

It is an arithmetic number, because the mean of its divisors is an integer number (98482008564).

Almost surely, 2^{1006655005666} is an apocalyptic number.

1006655005666 is a deficient number, since it is larger than the sum of its proper divisors (569057131358).

1006655005666 is a wasteful number, since it uses less digits than its factorization.

1006655005666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086345.

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 1006655005666 in words is "one trillion, six billion, six hundred fifty-five million, five thousand, six hundred sixty-six".