1663898622 has 16 divisors (see below), whose sum is σ = 3328197120. Its totient is φ = 554566232.

The previous prime is 1663898611. The next prime is 1663898623. The reversal of 1663898622 is 2268983661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663898623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88243 + ... + 105425.

It is an arithmetic number, because the mean of its divisors is an integer number (208012320).

Almost surely, 2^1663898622 is an apocalyptic number.

1663898622 is an abundant number, since it is smaller than the sum of its proper divisors (1664298498).

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

1663898622 is a wasteful number, since it uses less digits than its factorization.

1663898622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33327.

The product of its digits is 1492992, while the sum is 51.

The square root of 1663898622 is about 40790.9134734686. The cubic root of 1663898622 is about 1184.9743618160.

The spelling of 1663898622 in words is "one billion, six hundred sixty-three million, eight hundred ninety-eight thousand, six hundred twenty-two".