1020773466145 has 4 divisors (see below), whose sum is σ = 1224928159380. Its totient is φ = 816618772912.

The previous prime is 1020773466143. The next prime is 1020773466161. The reversal of 1020773466145 is 5416643770201.

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 660409774336 + 360363691809 = 812656^2 + 600303^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020773466145 - 2¹ = 1020773466143 is a prime.

It is a super-2 number, since 2×1020773466145² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020773466095 and 1020773466104.

It is not an unprimeable number, because it can be changed into a prime (1020773466143) 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, 102077346610 + ... + 102077346619.

It is an arithmetic number, because the mean of its divisors is an integer number (306232039845).

Almost surely, 2^{1020773466145} is an apocalyptic number.

It is an amenable number.

1020773466145 is a deficient number, since it is larger than the sum of its proper divisors (204154693235).

1020773466145 is an equidigital number, since it uses as much as digits as its factorization.

1020773466145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204154693234.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 1020773466145 in words is "one trillion, twenty billion, seven hundred seventy-three million, four hundred sixty-six thousand, one hundred forty-five".