161155512024542 has 16 divisors (see below), whose sum is σ = 277149232918752. Its totient is φ = 68845987791360.

The previous prime is 161155512024467. The next prime is 161155512024569. The reversal of 161155512024542 is 245420215551161.

161155512024542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161155512024542² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161155512024493 and 161155512024502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18388347059 + ... + 18388355822.

It is an arithmetic number, because the mean of its divisors is an integer number (17321827057422).

Almost surely, 2^{161155512024542} is an apocalyptic number.

161155512024542 is a deficient number, since it is larger than the sum of its proper divisors (115993720894210).

161155512024542 is a wasteful number, since it uses less digits than its factorization.

161155512024542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36776703203.

The product of its (nonzero) digits is 480000, while the sum is 44.

The spelling of 161155512024542 in words is "one hundred sixty-one trillion, one hundred fifty-five billion, five hundred twelve million, twenty-four thousand, five hundred forty-two".