550001004665 has 32 divisors (see below), whose sum is σ = 780661186560. Its totient is φ = 363968640000.

The previous prime is 550001004661. The next prime is 550001004667. The reversal of 550001004665 is 566400100055.

It is not a de Polignac number, because 550001004665 - 2² = 550001004661 is a prime.

It is a super-2 number, since 2×550001004665² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (550001004661) 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, 2068040 + ... + 2318790.

It is an arithmetic number, because the mean of its divisors is an integer number (24395662080).

Almost surely, 2^550001004665 is an apocalyptic number.

It is an amenable number.

550001004665 is a deficient number, since it is larger than the sum of its proper divisors (230660181895).

550001004665 is a wasteful number, since it uses less digits than its factorization.

550001004665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252953.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 550001004665 in words is "five hundred fifty billion, one million, four thousand, six hundred sixty-five".