161753671610 has 8 divisors (see below), whose sum is σ = 291156608916. Its totient is φ = 64701468640.

The previous prime is 161753671609. The next prime is 161753671661. The reversal of 161753671610 is 16176357161.

161753671610 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 161299427641 + 454243969 = 401621^2 + 21313^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8087683571 + ... + 8087683590.

Almost surely, 2^161753671610 is an apocalyptic number.

161753671610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161753671610 is a deficient number, since it is larger than the sum of its proper divisors (129402937306).

161753671610 is a wasteful number, since it uses less digits than its factorization.

161753671610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16175367168.

The product of its (nonzero) digits is 158760, while the sum is 44.

The spelling of 161753671610 in words is "one hundred sixty-one billion, seven hundred fifty-three million, six hundred seventy-one thousand, six hundred ten".