16140297429 has 6 divisors (see below), whose sum is σ = 23313762966. Its totient is φ = 10760198280.

The previous prime is 16140297427. The next prime is 16140297463. The reversal of 16140297429 is 92479204161.

16140297429 is a `hidden beast` number, since 1 + 614 + 0 + 2 + 9 + 7 + 4 + 29 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15883560900 + 256736529 = 126030^2 + 16023^2 .

It is not a de Polignac number, because 16140297429 - 2¹ = 16140297427 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16140297427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 896683182 + ... + 896683199.

It is an arithmetic number, because the mean of its divisors is an integer number (3885627161).

Almost surely, 2^16140297429 is an apocalyptic number.

It is an amenable number.

16140297429 is a deficient number, since it is larger than the sum of its proper divisors (7173465537).

16140297429 is a wasteful number, since it uses less digits than its factorization.

16140297429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793366387 (or 1793366384 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 16140297429 in words is "sixteen billion, one hundred forty million, two hundred ninety-seven thousand, four hundred twenty-nine".