1077215505665 has 16 divisors (see below), whose sum is σ = 1393460107200. Its totient is φ = 794701520832.

The previous prime is 1077215505659. The next prime is 1077215505683. The reversal of 1077215505665 is 5665055127701.

It is a cyclic number.

It is not a de Polignac number, because 1077215505665 - 2⁸ = 1077215505409 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8065535 + ... + 8198004.

It is an arithmetic number, because the mean of its divisors is an integer number (87091256700).

Almost surely, 2^{1077215505665} is an apocalyptic number.

It is an amenable number.

1077215505665 is a deficient number, since it is larger than the sum of its proper divisors (316244601535).

1077215505665 is a wasteful number, since it uses less digits than its factorization.

1077215505665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16264576.

The product of its (nonzero) digits is 2205000, while the sum is 50.

The spelling of 1077215505665 in words is "one trillion, seventy-seven billion, two hundred fifteen million, five hundred five thousand, six hundred sixty-five".