1071200715655 has 12 divisors (see below), whose sum is σ = 1495308754440. Its totient is φ = 734537633424.

The previous prime is 1071200715653. The next prime is 1071200715701. The reversal of 1071200715655 is 5565170021701.

1071200715655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1071200715655 - 2¹ = 1071200715653 is a prime.

It is a super-2 number, since 2×1071200715655² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071200715653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2186123665 + ... + 2186124154.

It is an arithmetic number, because the mean of its divisors is an integer number (124609062870).

Almost surely, 2^{1071200715655} is an apocalyptic number.

1071200715655 is a deficient number, since it is larger than the sum of its proper divisors (424108038785).

1071200715655 is an equidigital number, since it uses as much as digits as its factorization.

1071200715655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372247838 (or 4372247831 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 40.

The spelling of 1071200715655 in words is "one trillion, seventy-one billion, two hundred million, seven hundred fifteen thousand, six hundred fifty-five".