1041644665332 has 36 divisors (see below), whose sum is σ = 2633086294020. Its totient is φ = 347209606272.

The previous prime is 1041644665289. The next prime is 1041644665337. The reversal of 1041644665332 is 2335664461401.

1041644665332 is a `hidden beast` number, since 1 + 0 + 4 + 16 + 44 + 66 + 533 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 195402897936 + 846241767396 = 442044^2 + 919914^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×1041644665332³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1041644665337) 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, 2715568 + ... + 3075320.

It is an arithmetic number, because the mean of its divisors is an integer number (73141285945).

Almost surely, 2^{1041644665332} is an apocalyptic number.

1041644665332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1041644665332 is an abundant number, since it is smaller than the sum of its proper divisors (1591441628688).

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

1041644665332 is a wasteful number, since it uses less digits than its factorization.

1041644665332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440192 (or 440187 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 1041644665332 in words is "one trillion, forty-one billion, six hundred forty-four million, six hundred sixty-five thousand, three hundred thirty-two".