610005551000 has 128 divisors (see below), whose sum is σ = 1456629894720. Its totient is φ = 239040000000.

The previous prime is 610005550997. The next prime is 610005551027. The reversal of 610005551000 is 155500016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15291080 + ... + 15330920.

Almost surely, 2^610005551000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 610005551000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (728314947360).

610005551000 is an abundant number, since it is smaller than the sum of its proper divisors (846624343720).

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

610005551000 is a wasteful number, since it uses less digits than its factorization.

610005551000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40174 (or 40160 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

The spelling of 610005551000 in words is "six hundred ten billion, five million, five hundred fifty-one thousand".