161470908220 has 12 divisors (see below), whose sum is σ = 339088907304. Its totient is φ = 64588363280.

The previous prime is 161470908191. The next prime is 161470908229. The reversal of 161470908220 is 22809074161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161470908229) 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, 4036772686 + ... + 4036772725.

It is an arithmetic number, because the mean of its divisors is an integer number (28257408942).

Almost surely, 2^161470908220 is an apocalyptic number.

161470908220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161470908220 is an abundant number, since it is smaller than the sum of its proper divisors (177617999084).

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

161470908220 is a wasteful number, since it uses less digits than its factorization.

161470908220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8073545420 (or 8073545418 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 161470908220 in words is "one hundred sixty-one billion, four hundred seventy million, nine hundred eight thousand, two hundred twenty".