161334770212 has 24 divisors (see below), whose sum is σ = 352003135680. Its totient is φ = 62857702560.

The previous prime is 161334770119. The next prime is 161334770273. The reversal of 161334770212 is 212077433161.

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, 261906787 + ... + 261907402.

It is an arithmetic number, because the mean of its divisors is an integer number (14666797320).

Almost surely, 2^161334770212 is an apocalyptic number.

It is an amenable number.

161334770212 is an abundant number, since it is smaller than the sum of its proper divisors (190668365468).

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

161334770212 is a wasteful number, since it uses less digits than its factorization.

161334770212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523814211 (or 523814209 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 161334770212 in words is "one hundred sixty-one billion, three hundred thirty-four million, seven hundred seventy thousand, two hundred twelve".