65506650550 has 96 divisors (see below), whose sum is σ = 140857056000. Its totient is φ = 22414896000.

The previous prime is 65506650479. The next prime is 65506650577. The reversal of 65506650550 is 5505660556.

It is a super-2 number, since 2×65506650550² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65506650497 and 65506650506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1536015 + ... + 1578085.

It is an arithmetic number, because the mean of its divisors is an integer number (1467261000).

Almost surely, 2^65506650550 is an apocalyptic number.

65506650550 is an abundant number, since it is smaller than the sum of its proper divisors (75350405450).

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

65506650550 is a wasteful number, since it uses less digits than its factorization.

65506650550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42262 (or 42257 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 43.

The spelling of 65506650550 in words is "sixty-five billion, five hundred six million, six hundred fifty thousand, five hundred fifty".