16120552537 has 2 divisors, whose sum is σ = 16120552538. Its totient is φ = 16120552536.

The previous prime is 16120552529. The next prime is 16120552571. The reversal of 16120552537 is 73525502161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13292014681 + 2828537856 = 115291^2 + 53184^2 .

It is a cyclic number.

It is not a de Polignac number, because 16120552537 - 2³ = 16120552529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16120552496 and 16120552505.

It is not a weakly prime, because it can be changed into another prime (16120552507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8060276268 + 8060276269.

It is an arithmetic number, because the mean of its divisors is an integer number (8060276269).

Almost surely, 2^16120552537 is an apocalyptic number.

It is an amenable number.

16120552537 is a deficient number, since it is larger than the sum of its proper divisors (1).

16120552537 is an equidigital number, since it uses as much as digits as its factorization.

16120552537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 16120552537 in words is "sixteen billion, one hundred twenty million, five hundred fifty-two thousand, five hundred thirty-seven".