161134033515242 has 16 divisors (see below), whose sum is σ = 246027059782560. Its totient is φ = 79136235402672.

The previous prime is 161134033515241. The next prime is 161134033515253. The reversal of 161134033515242 is 242515330431161.

It is a super-2 number, since 2×161134033515242² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161134033515242.

It is not an unprimeable number, because it can be changed into a prime (161134033515241) 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, 2805424892 + ... + 2805482327.

It is an arithmetic number, because the mean of its divisors is an integer number (15376691236410).

Almost surely, 2^{161134033515242} is an apocalyptic number.

161134033515242 is a deficient number, since it is larger than the sum of its proper divisors (84893026267318).

161134033515242 is a wasteful number, since it uses less digits than its factorization.

161134033515242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5610907477.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 161134033515242 in words is "one hundred sixty-one trillion, one hundred thirty-four billion, thirty-three million, five hundred fifteen thousand, two hundred forty-two".