1065552518646 has 160 divisors (see below), whose sum is σ = 2979893740032. Its totient is φ = 276477546240.

The previous prime is 1065552518629. The next prime is 1065552518687. The reversal of 1065552518646 is 6468152555601.

1065552518646 is a `hidden beast` number, since 1 + 0 + 6 + 5 + 552 + 5 + 1 + 86 + 4 + 6 = 666.

It is a super-2 number, since 2×1065552518646² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1065552518592 and 1065552518601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 12018190 + ... + 12106526.

Almost surely, 2^{1065552518646} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1065552518646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1489946870016).

1065552518646 is an abundant number, since it is smaller than the sum of its proper divisors (1914341221386).

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

1065552518646 is a wasteful number, since it uses less digits than its factorization.

1065552518646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89336 (or 89327 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 54.

The spelling of 1065552518646 in words is "one trillion, sixty-five billion, five hundred fifty-two million, five hundred eighteen thousand, six hundred forty-six".