1011660806001 has 32 divisors (see below), whose sum is σ = 1428573153280. Its totient is φ = 635033649600.

The previous prime is 1011660805937. The next prime is 1011660806029. The reversal of 1011660806001 is 1006080661101.

It is a happy number.

It is not a de Polignac number, because 1011660806001 - 2⁶ = 1011660805937 is a prime.

It is a super-2 number, since 2×1011660806001² (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 1011660806001.

It is not an unprimeable number, because it can be changed into a prime (1011660806041) 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, 17747736 + ... + 17804646.

It is an arithmetic number, because the mean of its divisors is an integer number (44642911040).

Almost surely, 2^{1011660806001} is an apocalyptic number.

It is an amenable number.

1011660806001 is a deficient number, since it is larger than the sum of its proper divisors (416912347279).

1011660806001 is a wasteful number, since it uses less digits than its factorization.

1011660806001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58837.

The product of its (nonzero) digits is 1728, while the sum is 30.

The spelling of 1011660806001 in words is "one trillion, eleven billion, six hundred sixty million, eight hundred six thousand, one".