1616951983 has 2 divisors, whose sum is σ = 1616951984. Its totient is φ = 1616951982.

The previous prime is 1616951977. The next prime is 1616952109. The reversal of 1616951983 is 3891596161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1616951983 - 2¹³ = 1616943791 is a prime.

It is a super-2 number, since 2×1616951983² = 5229067430655264578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1616951933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808475991 + 808475992.

It is an arithmetic number, because the mean of its divisors is an integer number (808475992).

Almost surely, 2^1616951983 is an apocalyptic number.

1616951983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616951983 is an equidigital number, since it uses as much as digits as its factorization.

1616951983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 49.

The square root of 1616951983 is about 40211.3414722762. The cubic root of 1616951983 is about 1173.7232507061.

The spelling of 1616951983 in words is "one billion, six hundred sixteen million, nine hundred fifty-one thousand, nine hundred eighty-three".