161010656 has 12 divisors (see below), whose sum is σ = 316989792. Its totient is φ = 80505312.

The previous prime is 161010623. The next prime is 161010667. The reversal of 161010656 is 656010161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2515760 + ... + 2515823.

It is an arithmetic number, because the mean of its divisors is an integer number (26415816).

Almost surely, 2^161010656 is an apocalyptic number.

161010656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161010656 is a deficient number, since it is larger than the sum of its proper divisors (155979136).

161010656 is an equidigital number, since it uses as much as digits as its factorization.

161010656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031593 (or 5031585 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 161010656 is about 12688.9974387262. The cubic root of 161010656 is about 544.0241843343.

The spelling of 161010656 in words is "one hundred sixty-one million, ten thousand, six hundred fifty-six".