161043155130 has 128 divisors (see below), whose sum is σ = 473816770560. Its totient is φ = 34470754560.

The previous prime is 161043155113. The next prime is 161043155131. The reversal of 161043155130 is 31551340161.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (161043155131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 717400 + ... + 914739.

It is an arithmetic number, because the mean of its divisors is an integer number (3701693520).

Almost surely, 2^161043155130 is an apocalyptic number.

161043155130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161043155130 is an abundant number, since it is smaller than the sum of its proper divisors (312773615430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161043155130 is a wasteful number, since it uses less digits than its factorization.

161043155130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632196.

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 161043155130 its reverse (31551340161), we get a palindrome (192594495291).

The spelling of 161043155130 in words is "one hundred sixty-one billion, forty-three million, one hundred fifty-five thousand, one hundred thirty".