550277611641 has 20 divisors (see below), whose sum is σ = 870373740852. Its totient is φ = 345272226048.

The previous prime is 550277611603. The next prime is 550277611643. The reversal of 550277611641 is 146116772055.

550277611641 is a `hidden beast` number, since 5 + 5 + 0 + 27 + 7 + 611 + 6 + 4 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 513680391225 + 36597220416 = 716715^2 + 191304^2 .

It is not a de Polignac number, because 550277611641 - 2¹¹ = 550277609593 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (550277611643) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 199808940 + ... + 199811693.

Almost surely, 2^550277611641 is an apocalyptic number.

550277611641 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

550277611641 is a deficient number, since it is larger than the sum of its proper divisors (320096129211).

550277611641 is a wasteful number, since it uses less digits than its factorization.

550277611641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399620662 (or 399620653 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 550277611641 in words is "five hundred fifty billion, two hundred seventy-seven million, six hundred eleven thousand, six hundred forty-one".