66111400410 has 96 divisors (see below), whose sum is σ = 183582262080. Its totient is φ = 15183463680.

The previous prime is 66111400403. The next prime is 66111400441. The reversal of 66111400410 is 1400411166.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 410307 + ... + 548246.

It is an arithmetic number, because the mean of its divisors is an integer number (1912315230).

Almost surely, 2^66111400410 is an apocalyptic number.

66111400410 is an abundant number, since it is smaller than the sum of its proper divisors (117470861670).

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

66111400410 is a wasteful number, since it uses less digits than its factorization.

66111400410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958604 (or 958593 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 66111400410 its reverse (1400411166), we get a palindrome (67511811576).

The spelling of 66111400410 in words is "sixty-six billion, one hundred eleven million, four hundred thousand, four hundred ten".