16668153124 has 96 divisors (see below), whose sum is σ = 34775516160. Its totient is φ = 6842973312.

The previous prime is 16668153121. The next prime is 16668153133. The reversal of 16668153124 is 42135186661.

It is a super-2 number, since 2×16668153124² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (16668153121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14041659 + ... + 14042845.

It is an arithmetic number, because the mean of its divisors is an integer number (362244960).

Almost surely, 2^16668153124 is an apocalyptic number.

16668153124 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 16668153124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17387758080).

16668153124 is an abundant number, since it is smaller than the sum of its proper divisors (18107363036).

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

16668153124 is a wasteful number, since it uses less digits than its factorization.

16668153124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457 (or 1455 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The spelling of 16668153124 in words is "sixteen billion, six hundred sixty-eight million, one hundred fifty-three thousand, one hundred twenty-four".