1006615615665 has 32 divisors (see below), whose sum is σ = 1758326224896. Its totient is φ = 487688160960.

The previous prime is 1006615615661. The next prime is 1006615615669. The reversal of 1006615615665 is 5665165166001.

It is an interprime number because it is at equal distance from previous prime (1006615615661) and next prime (1006615615669).

It is not a de Polignac number, because 1006615615665 - 2² = 1006615615661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1006615615661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2079727 + ... + 2517636.

It is an arithmetic number, because the mean of its divisors is an integer number (54947694528).

Almost surely, 2^{1006615615665} is an apocalyptic number.

1006615615665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1006615615665 is a deficient number, since it is larger than the sum of its proper divisors (751710609231).

1006615615665 is a wasteful number, since it uses less digits than its factorization.

1006615615665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4598709.

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 1006615615665 in words is "one trillion, six billion, six hundred fifteen million, six hundred fifteen thousand, six hundred sixty-five".