1020766800001 has 4 divisors (see below), whose sum is σ = 1099287323092. Its totient is φ = 942246276912.

The previous prime is 1020766799981. The next prime is 1020766800019. The reversal of 1020766800001 is 1000086670201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148502329600 + 872264470401 = 385360^2 + 933951^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020766800001 - 2²⁵ = 1020733245569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020766800091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39260261526 + ... + 39260261551.

It is an arithmetic number, because the mean of its divisors is an integer number (274821830773).

Almost surely, 2^{1020766800001} is an apocalyptic number.

It is an amenable number.

1020766800001 is a deficient number, since it is larger than the sum of its proper divisors (78520523091).

1020766800001 is an equidigital number, since it uses as much as digits as its factorization.

1020766800001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78520523090.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 1020766800001 in words is "one trillion, twenty billion, seven hundred sixty-six million, eight hundred thousand, one".