161016065601610 has 64 divisors (see below), whose sum is σ = 303864326737920. Its totient is φ = 61357213532160.

The previous prime is 161016065601581. The next prime is 161016065601617. The reversal of 161016065601610 is 16106560610161.

It is not an unprimeable number, because it can be changed into a prime (161016065601617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1501719 + ... + 18007978.

It is an arithmetic number, because the mean of its divisors is an integer number (4747880105280).

Almost surely, 2^{161016065601610} is an apocalyptic number.

161016065601610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161016065601610 is a deficient number, since it is larger than the sum of its proper divisors (142848261136310).

161016065601610 is a wasteful number, since it uses less digits than its factorization.

161016065601610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19510151.

The product of its (nonzero) digits is 38880, while the sum is 40.

The spelling of 161016065601610 in words is "one hundred sixty-one trillion, sixteen billion, sixty-five million, six hundred one thousand, six hundred ten".