2011403434550 has 24 divisors (see below), whose sum is σ = 3742117292736. Its totient is φ = 804366340640.

The previous prime is 2011403434549. The next prime is 2011403434609. The reversal of 2011403434550 is 554343041102.

It is a super-2 number, since 2×2011403434550² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4667417 + ... + 5080116.

It is an arithmetic number, because the mean of its divisors is an integer number (155921553864).

Almost surely, 2^{2011403434550} is an apocalyptic number.

2011403434550 is a deficient number, since it is larger than the sum of its proper divisors (1730713858186).

2011403434550 is a wasteful number, since it uses less digits than its factorization.

2011403434550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9751672 (or 9751667 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 2011403434550 its reverse (554343041102), we get a palindrome (2565746475652).

The spelling of 2011403434550 in words is "two trillion, eleven billion, four hundred three million, four hundred thirty-four thousand, five hundred fifty".