1663214620 has 12 divisors (see below), whose sum is σ = 3492750744. Its totient is φ = 665285840.

The previous prime is 1663214563. The next prime is 1663214621. The reversal of 1663214620 is 264123661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663214621) 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, 41580346 + ... + 41580385.

It is an arithmetic number, because the mean of its divisors is an integer number (291062562).

Almost surely, 2^1663214620 is an apocalyptic number.

1663214620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1663214620 is an abundant number, since it is smaller than the sum of its proper divisors (1829536124).

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

1663214620 is a wasteful number, since it uses less digits than its factorization.

1663214620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83160740 (or 83160738 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1663214620 is about 40782.5283669367. The cubic root of 1663214620 is about 1184.8119649182.

The spelling of 1663214620 in words is "one billion, six hundred sixty-three million, two hundred fourteen thousand, six hundred twenty".