1616537555463 has 32 divisors (see below), whose sum is σ = 2301125345280. Its totient is φ = 1005880619520.

The previous prime is 1616537555441. The next prime is 1616537555539. The reversal of 1616537555463 is 3645557356161.

It is a happy number.

It is not a de Polignac number, because 1616537555463 - 2²¹ = 1616535458311 is a prime.

It is a super-2 number, since 2×1616537555463² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616537555663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15421318 + ... + 15525788.

It is an arithmetic number, because the mean of its divisors is an integer number (71910167040).

Almost surely, 2^{1616537555463} is an apocalyptic number.

1616537555463 is a deficient number, since it is larger than the sum of its proper divisors (684587789817).

1616537555463 is a wasteful number, since it uses less digits than its factorization.

1616537555463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107007.

The product of its digits is 34020000, while the sum is 57.

The spelling of 1616537555463 in words is "one trillion, six hundred sixteen billion, five hundred thirty-seven million, five hundred fifty-five thousand, four hundred sixty-three".