161060666610 has 64 divisors (see below), whose sum is σ = 420920841600. Its totient is φ = 39285937152.

The previous prime is 161060666609. The next prime is 161060666621. The reversal of 161060666610 is 16666060161.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4855239 + ... + 4888298.

It is an arithmetic number, because the mean of its divisors is an integer number (6576888150).

Almost surely, 2^161060666610 is an apocalyptic number.

161060666610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161060666610 is an abundant number, since it is smaller than the sum of its proper divisors (259860174990).

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

161060666610 is a wasteful number, since it uses less digits than its factorization.

161060666610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9743595.

The product of its (nonzero) digits is 46656, while the sum is 39.

The spelling of 161060666610 in words is "one hundred sixty-one billion, sixty million, six hundred sixty-six thousand, six hundred ten".