550673358664 has 128 divisors (see below), whose sum is σ = 1226496660480. Its totient is φ = 228491424000.

The previous prime is 550673358659. The next prime is 550673358733. The reversal of 550673358664 is 466853376055.

It is a super-2 number, since 2×550673358664² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 550673358599 and 550673358608.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97444239 + ... + 97449889.

It is an arithmetic number, because the mean of its divisors is an integer number (9582005160).

Almost surely, 2^550673358664 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 550673358664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (613248330240).

550673358664 is an abundant number, since it is smaller than the sum of its proper divisors (675823301816).

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

550673358664 is a wasteful number, since it uses less digits than its factorization.

550673358664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6611 (or 6607 counting only the distinct ones).

The product of its (nonzero) digits is 54432000, while the sum is 58.

The spelling of 550673358664 in words is "five hundred fifty billion, six hundred seventy-three million, three hundred fifty-eight thousand, six hundred sixty-four".