161550067210 has 32 divisors (see below), whose sum is σ = 351880485120. Its totient is φ = 52130441472.

The previous prime is 161550067207. The next prime is 161550067229. The reversal of 161550067210 is 12760055161.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67876990 + ... + 67879369.

It is an arithmetic number, because the mean of its divisors is an integer number (10996265160).

Almost surely, 2^161550067210 is an apocalyptic number.

161550067210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161550067210 is an abundant number, since it is smaller than the sum of its proper divisors (190330417910).

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

161550067210 is a wasteful number, since it uses less digits than its factorization.

161550067210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135756390.

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 161550067210 in words is "one hundred sixty-one billion, five hundred fifty million, sixty-seven thousand, two hundred ten".