610660400320872 has 160 divisors (see below), whose sum is σ = 1947033160966080. Its totient is φ = 177003014538240.

The previous prime is 610660400320843. The next prime is 610660400320879. The reversal of 610660400320872 is 278023004066016.

610660400320872 is a `hidden beast` number, since 6 + 1 + 0 + 6 + 604 + 0 + 0 + 32 + 0 + 8 + 7 + 2 = 666.

It is a super-2 number, since 2×610660400320872² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (610660400320879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1862241513 + ... + 1862569400.

It is an arithmetic number, because the mean of its divisors is an integer number (12168957256038).

Almost surely, 2^{610660400320872} is an apocalyptic number.

It is an amenable number.

610660400320872 is an abundant number, since it is smaller than the sum of its proper divisors (1336372760645208).

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

610660400320872 is a wasteful number, since it uses less digits than its factorization.

610660400320872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724810965 (or 3724810952 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

Adding to 610660400320872 its reverse (278023004066016), we get a palindrome (888683404386888).

The spelling of 610660400320872 in words is "six hundred ten trillion, six hundred sixty billion, four hundred million, three hundred twenty thousand, eight hundred seventy-two".