661060051110 has 24 divisors (see below), whose sum is σ = 1718756133120. Its totient is φ = 176282680272.

The previous prime is 661060051009. The next prime is 661060051117. The reversal of 661060051110 is 11150060166.

661060051110 is a `hidden beast` number, since 6 + 6 + 1 + 0 + 600 + 51 + 1 + 1 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (661060051117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3672555750 + ... + 3672555929.

It is an arithmetic number, because the mean of its divisors is an integer number (71614838880).

Almost surely, 2^661060051110 is an apocalyptic number.

661060051110 is an abundant number, since it is smaller than the sum of its proper divisors (1057696082010).

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

661060051110 is a wasteful number, since it uses less digits than its factorization.

661060051110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7345111692 (or 7345111689 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The spelling of 661060051110 in words is "six hundred sixty-one billion, sixty million, fifty-one thousand, one hundred ten".