16030385491428 has 384 divisors, whose sum is σ = 54392100618240. Its totient is φ = 3958848051840.

The previous prime is 16030385491427. The next prime is 16030385491441. The reversal of 16030385491428 is 82419458303061.

It is a happy number.

16030385491428 is a `hidden beast` number, since 1 + 6 + 0 + 30 + 3 + 85 + 491 + 42 + 8 = 666.

It is a super-2 number, since 2×16030385491428² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (16030385491423) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 31690825 + ... + 32192687.

It is an arithmetic number, because the mean of its divisors is an integer number (141646095360).

Almost surely, 2^{16030385491428} is an apocalyptic number.

16030385491428 is a gapful number since it is divisible by the number (18) 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 16030385491428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27196050309120).

16030385491428 is an abundant number, since it is smaller than the sum of its proper divisors (38361715126812).

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

16030385491428 is a wasteful number, since it uses less digits than its factorization.

16030385491428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502084 (or 502076 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 16030385491428 in words is "sixteen trillion, thirty billion, three hundred eighty-five million, four hundred ninety-one thousand, four hundred twenty-eight".