16163949516624 has 420 divisors, whose sum is σ = 58108348568736. Its totient is φ = 4263016013568.

The previous prime is 16163949516607. The next prime is 16163949516643. The reversal of 16163949516624 is 42661594936161.

It is a happy number.

16163949516624 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 3 + 94 + 9 + 516 + 6 + 24 = 666.

It is a super-2 number, since 2×16163949516624² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 13212799 + ... + 14384225.

Almost surely, 2^{16163949516624} is an apocalyptic number.

16163949516624 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16163949516624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29054174284368).

16163949516624 is an abundant number, since it is smaller than the sum of its proper divisors (41944399052112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16163949516624 is a wasteful number, since it uses less digits than its factorization.

16163949516624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171486 (or 1171452 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 63.

The spelling of 16163949516624 in words is "sixteen trillion, one hundred sixty-three billion, nine hundred forty-nine million, five hundred sixteen thousand, six hundred twenty-four".