551534685750720 has 672 divisors, whose sum is σ = 2341402579771200. Its totient is φ = 121717996904448.

The previous prime is 551534685750707. The next prime is 551534685750731. The reversal of 551534685750720 is 27057586435155.

551534685750720 is a `hidden beast` number, since 5 + 5 + 1 + 5 + 3 + 46 + 85 + 7 + 507 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a super-2 number, since 2×551534685750720² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10183867 + ... + 34738746.

Almost surely, 2^{551534685750720} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551534685750720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1170701289885600).

551534685750720 is an abundant number, since it is smaller than the sum of its proper divisors (1789867894020480).

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

551534685750720 is a wasteful number, since it uses less digits than its factorization.

551534685750720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44922682 (or 44922659 counting only the distinct ones).

The product of its (nonzero) digits is 176400000, while the sum is 63.

The spelling of 551534685750720 in words is "five hundred fifty-one trillion, five hundred thirty-four billion, six hundred eighty-five million, seven hundred fifty thousand, seven hundred twenty".