1663020262 has 8 divisors (see below), whose sum is σ = 2499654096. Its totient is φ = 829802232.

The previous prime is 1663020251. The next prime is 1663020299. The reversal of 1663020262 is 2620203661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1663020262.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852733 + ... + 854680.

It is an arithmetic number, because the mean of its divisors is an integer number (312456762).

Almost surely, 2^1663020262 is an apocalyptic number.

1663020262 is a deficient number, since it is larger than the sum of its proper divisors (836633834).

1663020262 is a wasteful number, since it uses less digits than its factorization.

1663020262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707902.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1663020262 is about 40780.1454386813. The cubic root of 1663020262 is about 1184.7658119941.

The spelling of 1663020262 in words is "one billion, six hundred sixty-three million, twenty thousand, two hundred sixty-two".