161156606101151 has 4 divisors (see below), whose sum is σ = 162967354484400. Its totient is φ = 159345857717904.

The previous prime is 161156606101039. The next prime is 161156606101171. The reversal of 161156606101151 is 151101606651161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161156606101151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161156606101099 and 161156606101108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161156606101171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905374191491 + ... + 905374191668.

It is an arithmetic number, because the mean of its divisors is an integer number (40741838621100).

Almost surely, 2^{161156606101151} is an apocalyptic number.

161156606101151 is a deficient number, since it is larger than the sum of its proper divisors (1810748383249).

161156606101151 is an equidigital number, since it uses as much as digits as its factorization.

161156606101151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810748383248.

The product of its (nonzero) digits is 32400, while the sum is 41.

The spelling of 161156606101151 in words is "one hundred sixty-one trillion, one hundred fifty-six billion, six hundred six million, one hundred one thousand, one hundred fifty-one".