65662125210 has 192 divisors, whose sum is σ = 188225856000. Its totient is φ = 15749354880.

The previous prime is 65662125203. The next prime is 65662125227. The reversal of 65662125210 is 1252126656.

65662125210 is a `hidden beast` number, since 6 + 5 + 6 + 621 + 2 + 5 + 21 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 52153561 + ... + 52154819.

It is an arithmetic number, because the mean of its divisors is an integer number (980343000).

Almost surely, 2^65662125210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65662125210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94112928000).

65662125210 is an abundant number, since it is smaller than the sum of its proper divisors (122563730790).

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

65662125210 is a wasteful number, since it uses less digits than its factorization.

65662125210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801 (or 1798 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 65662125210 in words is "sixty-five billion, six hundred sixty-two million, one hundred twenty-five thousand, two hundred ten".