663778062 has 12 divisors (see below), whose sum is σ = 1438185840. Its totient is φ = 221259348.

The previous prime is 663778061. The next prime is 663778067. The reversal of 663778062 is 260877366.

663778062 is a `hidden beast` number, since 6 + 637 + 7 + 8 + 0 + 6 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 663777999 and 663778017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663778061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18438262 + ... + 18438297.

It is an arithmetic number, because the mean of its divisors is an integer number (119848820).

Almost surely, 2^663778062 is an apocalyptic number.

663778062 is an abundant number, since it is smaller than the sum of its proper divisors (774407778).

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

663778062 is a wasteful number, since it uses less digits than its factorization.

663778062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36876567 (or 36876564 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 663778062 is about 25763.8906611560. The cubic root of 663778062 is about 872.3169237365.

The spelling of 663778062 in words is "six hundred sixty-three million, seven hundred seventy-eight thousand, sixty-two".