1070721056165 has 8 divisors (see below), whose sum is σ = 1284882112800. Its totient is φ = 856565614672.

The previous prime is 1070721056059. The next prime is 1070721056213. The reversal of 1070721056165 is 5616501270701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1070721056165 - 2¹⁰ = 1070721055141 is a prime.

It is a super-2 number, since 2×1070721056165² (a number of 25 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 972215 + ... + 1756884.

It is an arithmetic number, because the mean of its divisors is an integer number (160610264100).

Almost surely, 2^{1070721056165} is an apocalyptic number.

It is an amenable number.

1070721056165 is a deficient number, since it is larger than the sum of its proper divisors (214161056635).

1070721056165 is an equidigital number, since it uses as much as digits as its factorization.

1070721056165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807571.

The product of its (nonzero) digits is 88200, while the sum is 41.

The spelling of 1070721056165 in words is "one trillion, seventy billion, seven hundred twenty-one million, fifty-six thousand, one hundred sixty-five".