1642213323536 has 10 divisors (see below), whose sum is σ = 3181788314382. Its totient is φ = 821106661760.

The previous prime is 1642213323521. The next prime is 1642213323551. The reversal of 1642213323536 is 6353233122461.

It is an interprime number because it is at equal distance from previous prime (1642213323521) and next prime (1642213323551).

It can be written as a sum of positive squares in only one way, i.e., 1604133703936 + 38079619600 = 1266544^2 + 195140^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1642213323493 and 1642213323502.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51319166345 + ... + 51319166376.

Almost surely, 2^{1642213323536} is an apocalyptic number.

1642213323536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1642213323536 is a deficient number, since it is larger than the sum of its proper divisors (1539574990846).

1642213323536 is a wasteful number, since it uses less digits than its factorization.

1642213323536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102638332729 (or 102638332723 counting only the distinct ones).

The product of its digits is 466560, while the sum is 41.

Adding to 1642213323536 its reverse (6353233122461), we get a palindrome (7995446445997).

The spelling of 1642213323536 in words is "one trillion, six hundred forty-two billion, two hundred thirteen million, three hundred twenty-three thousand, five hundred thirty-six".