663275254026 has 96 divisors (see below), whose sum is σ = 1685428093440. Its totient is φ = 172073244000.

The previous prime is 663275254013. The next prime is 663275254039. The reversal of 663275254026 is 620452572366.

It is an interprime number because it is at equal distance from previous prime (663275254013) and next prime (663275254039).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2591101 + ... + 2835551.

It is an arithmetic number, because the mean of its divisors is an integer number (17556542640).

Almost surely, 2^663275254026 is an apocalyptic number.

663275254026 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 663275254026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842714046720).

663275254026 is an abundant number, since it is smaller than the sum of its proper divisors (1022152839414).

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

663275254026 is a wasteful number, since it uses less digits than its factorization.

663275254026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245320 (or 245313 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 48.

The spelling of 663275254026 in words is "six hundred sixty-three billion, two hundred seventy-five million, two hundred fifty-four thousand, twenty-six".