161155512024541 has 16 divisors (see below), whose sum is σ = 165120903018288. Its totient is φ = 157191780902400.

The previous prime is 161155512024467. The next prime is 161155512024569. The reversal of 161155512024541 is 145420215551161.

161155512024541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2320659203641 + 158834852820900 = 1523371^2 + 12602970^2 .

It is a cyclic number.

It is not a de Polignac number, because 161155512024541 - 2¹⁷ = 161155511893469 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 (161155512028541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5651194215 + ... + 5651222731.

It is an arithmetic number, because the mean of its divisors is an integer number (10320056438643).

Almost surely, 2^{161155512024541} is an apocalyptic number.

It is an amenable number.

161155512024541 is a deficient number, since it is larger than the sum of its proper divisors (3965390993747).

161155512024541 is a wasteful number, since it uses less digits than its factorization.

161155512024541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52752.

The product of its (nonzero) digits is 240000, while the sum is 43.

The spelling of 161155512024541 in words is "one hundred sixty-one trillion, one hundred fifty-five billion, five hundred twelve million, twenty-four thousand, five hundred forty-one".