161064110155650 has 96 divisors (see below), whose sum is σ = 430183253384640. Its totient is φ = 39644874266880.

The previous prime is 161064110155639. The next prime is 161064110155651. The reversal of 161064110155650 is 56551011460161.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161064110155651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44713204 + ... + 48180896.

It is an arithmetic number, because the mean of its divisors is an integer number (4481075556090).

Almost surely, 2^{161064110155650} is an apocalyptic number.

161064110155650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161064110155650 is an abundant number, since it is smaller than the sum of its proper divisors (269119143228990).

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

161064110155650 is a wasteful number, since it uses less digits than its factorization.

161064110155650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491540 (or 3491535 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 42.

The spelling of 161064110155650 in words is "one hundred sixty-one trillion, sixty-four billion, one hundred ten million, one hundred fifty-five thousand, six hundred fifty".