1631616221463 has 8 divisors (see below), whose sum is σ = 2175553452528. Its totient is φ = 1087711569024.

The previous prime is 1631616221453. The next prime is 1631616221471. The reversal of 1631616221463 is 3641226161361.

It is a happy number.

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

It is not a de Polignac number, because 1631616221463 - 2¹⁶ = 1631616155927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1631616221453) 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, 8027556 + ... + 8228297.

It is an arithmetic number, because the mean of its divisors is an integer number (271944181566).

Almost surely, 2^{1631616221463} is an apocalyptic number.

1631616221463 is a deficient number, since it is larger than the sum of its proper divisors (543937231065).

1631616221463 is a wasteful number, since it uses less digits than its factorization.

1631616221463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16289313.

The product of its digits is 186624, while the sum is 42.

The spelling of 1631616221463 in words is "one trillion, six hundred thirty-one billion, six hundred sixteen million, two hundred twenty-one thousand, four hundred sixty-three".