16143501450 has 192 divisors, whose sum is σ = 42025310208. Its totient is φ = 4097433600.

The previous prime is 16143501421. The next prime is 16143501509. The reversal of 16143501450 is 5410534161.

It is a happy number.

It is a super-2 number, since 2×16143501450² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 84520855 + ... + 84521045.

It is an arithmetic number, because the mean of its divisors is an integer number (218881824).

Almost surely, 2^16143501450 is an apocalyptic number.

16143501450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16143501450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21012655104).

16143501450 is an abundant number, since it is smaller than the sum of its proper divisors (25881808758).

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

16143501450 is a wasteful number, since it uses less digits than its factorization.

16143501450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 16143501450 in words is "sixteen billion, one hundred forty-three million, five hundred one thousand, four hundred fifty".