161188713058 has 8 divisors (see below), whose sum is σ = 242142333228. Its totient is φ = 80474601984.

The previous prime is 161188713053. The next prime is 161188713073. The reversal of 161188713058 is 850317881161.

It can be written as a sum of positive squares in 2 ways, for example, as 147266365009 + 13922348049 = 383753^2 + 117993^2 .

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

It is a super-3 number, since 3×161188713058³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (161188713053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59875591 + ... + 59878282.

Almost surely, 2^161188713058 is an apocalyptic number.

161188713058 is a deficient number, since it is larger than the sum of its proper divisors (80953620170).

161188713058 is a wasteful number, since it uses less digits than its factorization.

161188713058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119754548.

The product of its (nonzero) digits is 322560, while the sum is 49.

The spelling of 161188713058 in words is "one hundred sixty-one billion, one hundred eighty-eight million, seven hundred thirteen thousand, fifty-eight".