63066665610 has 160 divisors (see below), whose sum is σ = 192236204160. Its totient is φ = 14706997632.

The previous prime is 63066665609. The next prime is 63066665621. The reversal of 63066665610 is 1656666036.

63066665610 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63066665610² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 42459 + ... + 357681.

It is an arithmetic number, because the mean of its divisors is an integer number (1201476276).

Almost surely, 2^63066665610 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63066665610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96118102080).

63066665610 is an abundant number, since it is smaller than the sum of its proper divisors (129169538550).

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

63066665610 is a wasteful number, since it uses less digits than its factorization.

63066665610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315274 (or 315265 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The spelling of 63066665610 in words is "sixty-three billion, sixty-six million, six hundred sixty-five thousand, six hundred ten".