161011057151051 has 8 divisors (see below), whose sum is σ = 162242079014400. Its totient is φ = 159780064527720.

The previous prime is 161011057151047. The next prime is 161011057151129. The reversal of 161011057151051 is 150151750110161.

It is a happy number.

161011057151051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 161011057151051 - 2² = 161011057151047 is a prime.

It is a super-2 number, since 2×161011057151051² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161011059151051) 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, 3809570 + ... + 18344888.

It is an arithmetic number, because the mean of its divisors is an integer number (20280259876800).

Almost surely, 2^{161011057151051} is an apocalyptic number.

161011057151051 is a deficient number, since it is larger than the sum of its proper divisors (1231021863349).

161011057151051 is a wasteful number, since it uses less digits than its factorization.

161011057151051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14620009.

The product of its (nonzero) digits is 5250, while the sum is 35.

The spelling of 161011057151051 in words is "one hundred sixty-one trillion, eleven billion, fifty-seven million, one hundred fifty-one thousand, fifty-one".