1022165550 has 72 divisors (see below), whose sum is σ = 3138544656. Its totient is φ = 233637120.

The previous prime is 1022165539. The next prime is 1022165587. The reversal of 1022165550 is 555612201.

1022165550 is a `hidden beast` number, since 1 + 0 + 2 + 2 + 1 + 655 + 5 + 0 = 666.

1022165550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 159099 + ... + 165398.

It is an arithmetic number, because the mean of its divisors is an integer number (43590898).

Almost surely, 2^1022165550 is an apocalyptic number.

1022165550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1022165550 is an abundant number, since it is smaller than the sum of its proper divisors (2116379106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022165550 is a wasteful number, since it uses less digits than its factorization.

1022165550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324522 (or 324514 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1022165550 is about 31971.3238699932. The cubic root of 1022165550 is about 1007.3345889473.

Adding to 1022165550 its reverse (555612201), we get a palindrome (1577777751).

The spelling of 1022165550 in words is "one billion, twenty-two million, one hundred sixty-five thousand, five hundred fifty".