1632646663623 has 16 divisors (see below), whose sum is σ = 2474985469440. Its totient is φ = 1063118756952.

The previous prime is 1632646663621. The next prime is 1632646663699. The reversal of 1632646663623 is 3263666462361.

It is not a de Polignac number, because 1632646663623 - 2¹ = 1632646663621 is a prime.

It is a super-2 number, since 2×1632646663623² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1632646663623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1632646663621) 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, 703119711 + ... + 703122032.

It is an arithmetic number, because the mean of its divisors is an integer number (154686591840).

Almost surely, 2^{1632646663623} is an apocalyptic number.

1632646663623 is a deficient number, since it is larger than the sum of its proper divisors (842338805817).

1632646663623 is a wasteful number, since it uses less digits than its factorization.

1632646663623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406241795 (or 1406241789 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 54.

The spelling of 1632646663623 in words is "one trillion, six hundred thirty-two billion, six hundred forty-six million, six hundred sixty-three thousand, six hundred twenty-three".