611554042160 has 40 divisors (see below), whose sum is σ = 1421915360640. Its totient is φ = 244612634112.

The previous prime is 611554042139. The next prime is 611554042171. The reversal of 611554042160 is 61240455116.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 611554042160.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2319644 + ... + 2569796.

It is an arithmetic number, because the mean of its divisors is an integer number (35547884016).

Almost surely, 2^611554042160 is an apocalyptic number.

It is an amenable number.

611554042160 is an abundant number, since it is smaller than the sum of its proper divisors (810361318480).

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

611554042160 is a wasteful number, since it uses less digits than its factorization.

611554042160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280725 (or 280719 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 611554042160 its reverse (61240455116), we get a palindrome (672794497276).

The spelling of 611554042160 in words is "six hundred eleven billion, five hundred fifty-four million, forty-two thousand, one hundred sixty".