1643057133411 has 16 divisors (see below), whose sum is σ = 2244990472704. Its totient is φ = 1068406693344.

The previous prime is 1643057133409. The next prime is 1643057133439. The reversal of 1643057133411 is 1143317503461.

It is not a de Polignac number, because 1643057133411 - 2¹ = 1643057133409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1643057133411.

It is not an unprimeable number, because it can be changed into a prime (1643057133401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19844161 + ... + 19926786.

It is an arithmetic number, because the mean of its divisors is an integer number (140311904544).

Almost surely, 2^{1643057133411} is an apocalyptic number.

1643057133411 is a deficient number, since it is larger than the sum of its proper divisors (601933339293).

1643057133411 is a wasteful number, since it uses less digits than its factorization.

1643057133411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39771290.

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 1643057133411 in words is "one trillion, six hundred forty-three billion, fifty-seven million, one hundred thirty-three thousand, four hundred eleven".