1065661615101 has 16 divisors (see below), whose sum is σ = 1460995270784. Its totient is φ = 690429541824.

The previous prime is 1065661615099. The next prime is 1065661615181. The reversal of 1065661615101 is 1015161665601.

It is not a de Polignac number, because 1065661615101 - 2¹ = 1065661615099 is a prime.

It is a super-2 number, since 2×1065661615101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1065661615101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065661615181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5532841 + ... + 5722206.

It is an arithmetic number, because the mean of its divisors is an integer number (91312204424).

Almost surely, 2^{1065661615101} is an apocalyptic number.

It is an amenable number.

1065661615101 is a deficient number, since it is larger than the sum of its proper divisors (395333655683).

1065661615101 is a wasteful number, since it uses less digits than its factorization.

1065661615101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11255940.

The product of its (nonzero) digits is 32400, while the sum is 39.

It can be divided in two parts, 1065 and 661615101, that added together give a palindrome (661616166).

The spelling of 1065661615101 in words is "one trillion, sixty-five billion, six hundred sixty-one million, six hundred fifteen thousand, one hundred one".