1020366645 has 16 divisors (see below), whose sum is σ = 1643402112. Its totient is φ = 540590400.

The previous prime is 1020366601. The next prime is 1020366667. The reversal of 1020366645 is 5466630201.

It is not a de Polignac number, because 1020366645 - 2¹² = 1020362549 is a prime.

It is a super-2 number, since 2×1020366645² = 2082296180457112050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222982 + ... + 227511.

It is an arithmetic number, because the mean of its divisors is an integer number (102712632).

Almost surely, 2^1020366645 is an apocalyptic number.

1020366645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020366645 is a deficient number, since it is larger than the sum of its proper divisors (623035467).

1020366645 is a wasteful number, since it uses less digits than its factorization.

1020366645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450652.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1020366645 is about 31943.1783797417. The cubic root of 1020366645 is about 1006.7433072628.

Adding to 1020366645 its reverse (5466630201), we get a palindrome (6486996846).

The spelling of 1020366645 in words is "one billion, twenty million, three hundred sixty-six thousand, six hundred forty-five".