1071607061665 has 32 divisors (see below), whose sum is σ = 1484103868416. Its totient is φ = 727582564800.

The previous prime is 1071607061663. The next prime is 1071607061699. The reversal of 1071607061665 is 5661607061701.

It is not a de Polignac number, because 1071607061665 - 2¹ = 1071607061663 is a prime.

It is a super-2 number, since 2×1071607061665² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1071607061663) 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, 34415794 + ... + 34446916.

It is an arithmetic number, because the mean of its divisors is an integer number (46378245888).

Almost surely, 2^{1071607061665} is an apocalyptic number.

It is an amenable number.

1071607061665 is a deficient number, since it is larger than the sum of its proper divisors (412496806751).

1071607061665 is a wasteful number, since it uses less digits than its factorization.

1071607061665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40789.

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 1071607061665 in words is "one trillion, seventy-one billion, six hundred seven million, sixty-one thousand, six hundred sixty-five".