16161110156603 has 2 divisors, whose sum is σ = 16161110156604. Its totient is φ = 16161110156602.

The previous prime is 16161110156533. The next prime is 16161110156621. The reversal of 16161110156603 is 30665101116161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16161110156603 - 2¹⁶ = 16161110091067 is a prime.

It is a super-2 number, since 2×16161110156603² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16161110156663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8080555078301 + 8080555078302.

It is an arithmetic number, because the mean of its divisors is an integer number (8080555078302).

Almost surely, 2^{16161110156603} is an apocalyptic number.

16161110156603 is a deficient number, since it is larger than the sum of its proper divisors (1).

16161110156603 is an equidigital number, since it uses as much as digits as its factorization.

16161110156603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 38.

The spelling of 16161110156603 in words is "sixteen trillion, one hundred sixty-one billion, one hundred ten million, one hundred fifty-six thousand, six hundred three".