16021112537 has 2 divisors, whose sum is σ = 16021112538. Its totient is φ = 16021112536.

The previous prime is 16021112501. The next prime is 16021112557. The reversal of 16021112537 is 73521112061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11561410576 + 4459701961 = 107524^2 + 66781^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16021112537 is a prime.

It is not a weakly prime, because it can be changed into another prime (16021112557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8010556268 + 8010556269.

It is an arithmetic number, because the mean of its divisors is an integer number (8010556269).

Almost surely, 2^16021112537 is an apocalyptic number.

It is an amenable number.

16021112537 is a deficient number, since it is larger than the sum of its proper divisors (1).

16021112537 is an equidigital number, since it uses as much as digits as its factorization.

16021112537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 29.

Adding to 16021112537 its reverse (73521112061), we get a palindrome (89542224598).

The spelling of 16021112537 in words is "sixteen billion, twenty-one million, one hundred twelve thousand, five hundred thirty-seven".