142421561101161 has 48 divisors (see below), whose sum is σ = 218390573920896. Its totient is φ = 89252063163648.

The previous prime is 142421561101153. The next prime is 142421561101177. The reversal of 142421561101161 is 161101165124241.

142421561101161 is a `hidden beast` number, since 1 + 4 + 2 + 4 + 21 + 5 + 611 + 0 + 1 + 16 + 1 = 666.

It is not a de Polignac number, because 142421561101161 - 2³ = 142421561101153 is a prime.

It is a super-3 number, since 3×142421561101161³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (142421561101361) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12826935 + ... + 21198428.

It is an arithmetic number, because the mean of its divisors is an integer number (4549803623352).

Almost surely, 2^{142421561101161} is an apocalyptic number.

It is an amenable number.

142421561101161 is a deficient number, since it is larger than the sum of its proper divisors (75969012819735).

142421561101161 is a wasteful number, since it uses less digits than its factorization.

142421561101161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34025742 (or 34025739 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The spelling of 142421561101161 in words is "one hundred forty-two trillion, four hundred twenty-one billion, five hundred sixty-one million, one hundred one thousand, one hundred sixty-one".