16143256690 has 16 divisors (see below), whose sum is σ = 31699486080. Its totient is φ = 5870275120.

The previous prime is 16143256669. The next prime is 16143256693. The reversal of 16143256690 is 9665234161.

It is a super-2 number, since 2×16143256690² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16143256693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73378330 + ... + 73378549.

It is an arithmetic number, because the mean of its divisors is an integer number (1981217880).

Almost surely, 2^16143256690 is an apocalyptic number.

16143256690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16143256690 is a deficient number, since it is larger than the sum of its proper divisors (15556229390).

16143256690 is a wasteful number, since it uses less digits than its factorization.

16143256690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146756897.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 16143256690 in words is "sixteen billion, one hundred forty-three million, two hundred fifty-six thousand, six hundred ninety".