1623664011532 has 12 divisors (see below), whose sum is σ = 2887992545536. Its totient is φ = 798523284240.

The previous prime is 1623664011499. The next prime is 1623664011559. The reversal of 1623664011532 is 2351104663261.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3327180108 + ... + 3327180595.

Almost surely, 2^{1623664011532} is an apocalyptic number.

It is an amenable number.

1623664011532 is a deficient number, since it is larger than the sum of its proper divisors (1264328534004).

1623664011532 is a wasteful number, since it uses less digits than its factorization.

1623664011532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6654360768 (or 6654360766 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

Adding to 1623664011532 its reverse (2351104663261), we get a palindrome (3974768674793).

The spelling of 1623664011532 in words is "one trillion, six hundred twenty-three billion, six hundred sixty-four million, eleven thousand, five hundred thirty-two".