161121067151 has 8 divisors (see below), whose sum is σ = 175774050000. Its totient is φ = 146469019840.

The previous prime is 161121067099. The next prime is 161121067171. The reversal of 161121067151 is 151760121161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-161121067151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161121067171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154235 + ... + 588243.

It is an arithmetic number, because the mean of its divisors is an integer number (21971756250).

Almost surely, 2^161121067151 is an apocalyptic number.

161121067151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

161121067151 is a deficient number, since it is larger than the sum of its proper divisors (14652982849).

161121067151 is a wasteful number, since it uses less digits than its factorization.

161121067151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467769.

The product of its (nonzero) digits is 2520, while the sum is 32.

The spelling of 161121067151 in words is "one hundred sixty-one billion, one hundred twenty-one million, sixty-seven thousand, one hundred fifty-one".