554656644630 has 256 divisors, whose sum is σ = 1659124684800. Its totient is φ = 130710827520.

The previous prime is 554656644617. The next prime is 554656644631. The reversal of 554656644630 is 36446656455.

554656644630 is a `hidden beast` number, since 5 + 5 + 4 + 6 + 566 + 4 + 46 + 30 = 666.

It is a super-3 number, since 3×554656644630³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554656644631) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 17141527 + ... + 17173853.

It is an arithmetic number, because the mean of its divisors is an integer number (6480955800).

Almost surely, 2^554656644630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 554656644630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (829562342400).

554656644630 is an abundant number, since it is smaller than the sum of its proper divisors (1104468040170).

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

554656644630 is a wasteful number, since it uses less digits than its factorization.

554656644630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32516 (or 32510 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 54.

The spelling of 554656644630 in words is "five hundred fifty-four billion, six hundred fifty-six million, six hundred forty-four thousand, six hundred thirty".