16143553072 has 20 divisors (see below), whose sum is σ = 32924352280. Its totient is φ = 7646946048.

The previous prime is 16143553043. The next prime is 16143553109. The reversal of 16143553072 is 27035534161.

It is a super-2 number, since 2×16143553072² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26551593 + ... + 26552200.

It is an arithmetic number, because the mean of its divisors is an integer number (1646217614).

Almost surely, 2^16143553072 is an apocalyptic number.

It is an amenable number.

16143553072 is an abundant number, since it is smaller than the sum of its proper divisors (16780799208).

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

16143553072 is a wasteful number, since it uses less digits than its factorization.

16143553072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53103820 (or 53103814 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 16143553072 in words is "sixteen billion, one hundred forty-three million, five hundred fifty-three thousand, seventy-two".