551368125660 has 96 divisors (see below), whose sum is σ = 1689665548032. Its totient is φ = 133229560320.

The previous prime is 551368125647. The next prime is 551368125661. The reversal of 551368125660 is 66521863155.

It is a happy number.

It is a super-4 number, since 4×551368125660⁴ (a number of 48 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551368125661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1157977 + ... + 1563216.

It is an arithmetic number, because the mean of its divisors is an integer number (17600682792).

Almost surely, 2^551368125660 is an apocalyptic number.

It is an amenable number.

551368125660 is an abundant number, since it is smaller than the sum of its proper divisors (1138297422372).

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

551368125660 is a wasteful number, since it uses less digits than its factorization.

551368125660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721523 (or 2721521 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 48.

The spelling of 551368125660 in words is "five hundred fifty-one billion, three hundred sixty-eight million, one hundred twenty-five thousand, six hundred sixty".