1046642665653 has 24 divisors (see below), whose sum is σ = 1713800859680. Its totient is φ = 610188435360.

The previous prime is 1046642665631. The next prime is 1046642665657. The reversal of 1046642665653 is 3565662466401.

1046642665653 is a `hidden beast` number, since 10 + 4 + 6 + 6 + 4 + 2 + 66 + 565 + 3 = 666.

It is not a de Polignac number, because 1046642665653 - 2¹³ = 1046642657461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1046642665653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1046642665657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 235409983 + ... + 235414428.

Almost surely, 2^{1046642665653} is an apocalyptic number.

1046642665653 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1046642665653 is a deficient number, since it is larger than the sum of its proper divisors (667158194027).

1046642665653 is a wasteful number, since it uses less digits than its factorization.

1046642665653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470824449 (or 470824446 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 54.

The spelling of 1046642665653 in words is "one trillion, forty-six billion, six hundred forty-two million, six hundred sixty-five thousand, six hundred fifty-three".