16160156521 has 2 divisors, whose sum is σ = 16160156522. Its totient is φ = 16160156520.

The previous prime is 16160156503. The next prime is 16160156527. The reversal of 16160156521 is 12565106161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13207755625 + 2952400896 = 114925^2 + 54336^2 .

It is a cyclic number.

It is not a de Polignac number, because 16160156521 - 2⁹ = 16160156009 is a prime.

It is a super-2 number, since 2×16160156521² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16160156527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8080078260 + 8080078261.

It is an arithmetic number, because the mean of its divisors is an integer number (8080078261).

Almost surely, 2^16160156521 is an apocalyptic number.

It is an amenable number.

16160156521 is a deficient number, since it is larger than the sum of its proper divisors (1).

16160156521 is an equidigital number, since it uses as much as digits as its factorization.

16160156521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 34.

The spelling of 16160156521 in words is "sixteen billion, one hundred sixty million, one hundred fifty-six thousand, five hundred twenty-one".