555459640992 has 72 divisors (see below), whose sum is σ = 1638091649376. Its totient is φ = 185153211072.

The previous prime is 555459640991. The next prime is 555459641003. The reversal of 555459640992 is 299046954555.

555459640992 is a `hidden beast` number, since 5 + 5 + 54 + 5 + 96 + 409 + 92 = 666.

555459640992 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (555459640991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35708508 + ... + 35724059.

It is an arithmetic number, because the mean of its divisors is an integer number (22751272908).

Almost surely, 2^555459640992 is an apocalyptic number.

It is an amenable number.

555459640992 is an abundant number, since it is smaller than the sum of its proper divisors (1082632008384).

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

555459640992 is an equidigital number, since it uses as much as digits as its factorization.

555459640992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71432592 (or 71432572 counting only the distinct ones).

The product of its (nonzero) digits is 87480000, while the sum is 63.

The spelling of 555459640992 in words is "five hundred fifty-five billion, four hundred fifty-nine million, six hundred forty thousand, nine hundred ninety-two".