5651821016 has 32 divisors (see below), whose sum is σ = 11236374000. Its totient is φ = 2657627136.

The previous prime is 5651820953. The next prime is 5651821031. The reversal of 5651821016 is 6101281565.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114881 + ... + 156528.

Almost surely, 2^5651821016 is an apocalyptic number.

It is an amenable number.

5651821016 is a deficient number, since it is larger than the sum of its proper divisors (5584552984).

5651821016 is a wasteful number, since it uses less digits than its factorization.

5651821016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271571 (or 271567 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 5651821016 is about 75178.5941342348. The cubic root of 5651821016 is about 1781.2688230681.

The spelling of 5651821016 in words is "five billion, six hundred fifty-one million, eight hundred twenty-one thousand, sixteen".