1616702328431 has 4 divisors (see below), whose sum is σ = 1616707792752. Its totient is φ = 1616696864112.

The previous prime is 1616702328413. The next prime is 1616702328457. The reversal of 1616702328431 is 1348232076161.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1616702328431 - 2²⁶ = 1616635219567 is a prime.

It is a super-2 number, since 2×1616702328431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616702328491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2261315 + ... + 2889108.

It is an arithmetic number, because the mean of its divisors is an integer number (404176948188).

Almost surely, 2^{1616702328431} is an apocalyptic number.

1616702328431 is a deficient number, since it is larger than the sum of its proper divisors (5464321).

1616702328431 is an equidigital number, since it uses as much as digits as its factorization.

1616702328431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5464320.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 1616702328431 in words is "one trillion, six hundred sixteen billion, seven hundred two million, three hundred twenty-eight thousand, four hundred thirty-one".