1642063105534 has 4 divisors (see below), whose sum is σ = 2463094658304. Its totient is φ = 821031552766.

The previous prime is 1642063105519. The next prime is 1642063105567. The reversal of 1642063105534 is 4355013602461.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 410515776382 + ... + 410515776385.

It is an arithmetic number, because the mean of its divisors is an integer number (615773664576).

Almost surely, 2^{1642063105534} is an apocalyptic number.

1642063105534 is a deficient number, since it is larger than the sum of its proper divisors (821031552770).

1642063105534 is an equidigital number, since it uses as much as digits as its factorization.

1642063105534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821031552769.

The product of its (nonzero) digits is 259200, while the sum is 40.

Adding to 1642063105534 its reverse (4355013602461), we get a palindrome (5997076707995).

The spelling of 1642063105534 in words is "one trillion, six hundred forty-two billion, sixty-three million, one hundred five thousand, five hundred thirty-four".