161350656 has 88 divisors (see below), whose sum is σ = 438614784. Its totient is φ = 52715520.

The previous prime is 161350649. The next prime is 161350687. The reversal of 161350656 is 656053161.

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, 162321 + ... + 163311.

Almost surely, 2^161350656 is an apocalyptic number.

161350656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161350656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219307392).

161350656 is an abundant number, since it is smaller than the sum of its proper divisors (277264128).

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

161350656 is an equidigital number, since it uses as much as digits as its factorization.

161350656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 161350656 is about 12702.3878070227. The cubic root of 161350656 is about 544.4068467473.

The spelling of 161350656 in words is "one hundred sixty-one million, three hundred fifty thousand, six hundred fifty-six".