551649664313 has 8 divisors (see below), whose sum is σ = 601814601696. Its totient is φ = 501487221600.

The previous prime is 551649664303. The next prime is 551649664339. The reversal of 551649664313 is 313466946155.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 551649664313 - 2¹⁴ = 551649647929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551649664303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145343 + ... + 1060388.

It is an arithmetic number, because the mean of its divisors is an integer number (75226825212).

Almost surely, 2^551649664313 is an apocalyptic number.

It is an amenable number.

551649664313 is a deficient number, since it is larger than the sum of its proper divisors (50164937383).

551649664313 is a wasteful number, since it uses less digits than its factorization.

551649664313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247335.

The product of its digits is 6998400, while the sum is 53.

The spelling of 551649664313 in words is "five hundred fifty-one billion, six hundred forty-nine million, six hundred sixty-four thousand, three hundred thirteen".