802022661 has 64 divisors (see below), whose sum is σ = 1371801600. Its totient is φ = 458006400.

The previous prime is 802022621. The next prime is 802022671. The reversal of 802022661 is 166220208.

It is not a de Polignac number, because 802022661 - 2⁶ = 802022597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802022621) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1754745 + ... + 1755201.

It is an arithmetic number, because the mean of its divisors is an integer number (21434400).

Almost surely, 2^802022661 is an apocalyptic number.

It is an amenable number.

802022661 is a deficient number, since it is larger than the sum of its proper divisors (569778939).

802022661 is a wasteful number, since it uses less digits than its factorization.

802022661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 802022661 is about 28320.0046080505. The cubic root of 802022661 is about 929.0994716832.

Adding to 802022661 its reverse (166220208), we get a palindrome (968242869).

The spelling of 802022661 in words is "eight hundred two million, twenty-two thousand, six hundred sixty-one".