553012621646 has 4 divisors (see below), whose sum is σ = 829518932472. Its totient is φ = 276506310822.

The previous prime is 553012621631. The next prime is 553012621661. The reversal of 553012621646 is 646126210355.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 646126210355 = 5 ⋅129225242071.

It is an interprime number because it is at equal distance from previous prime (553012621631) and next prime (553012621661).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 138253155410 + ... + 138253155413.

It is an arithmetic number, because the mean of its divisors is an integer number (207379733118).

Almost surely, 2^553012621646 is an apocalyptic number.

553012621646 is a deficient number, since it is larger than the sum of its proper divisors (276506310826).

553012621646 is a wasteful number, since it uses less digits than its factorization.

553012621646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276506310825.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 553012621646 in words is "five hundred fifty-three billion, twelve million, six hundred twenty-one thousand, six hundred forty-six".