1532641663 has 8 divisors (see below), whose sum is σ = 1753187328. Its totient is φ = 1312495224.

The previous prime is 1532641637. The next prime is 1532641673. The reversal of 1532641663 is 3661462351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1532641663 - 2¹⁷ = 1532510591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1532641673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91531 + ... + 106972.

It is an arithmetic number, because the mean of its divisors is an integer number (219148416).

Almost surely, 2^1532641663 is an apocalyptic number.

1532641663 is a deficient number, since it is larger than the sum of its proper divisors (220545665).

1532641663 is a wasteful number, since it uses less digits than its factorization.

1532641663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199613.

The product of its digits is 77760, while the sum is 37.

The square root of 1532641663 is about 39148.9675853655. The cubic root of 1532641663 is about 1152.9581468008.

The spelling of 1532641663 in words is "one billion, five hundred thirty-two million, six hundred forty-one thousand, six hundred sixty-three".