161660346102 has 24 divisors (see below), whose sum is σ = 363236828136. Its totient is φ = 53886781872.

The previous prime is 161660346061. The next prime is 161660346121. The reversal of 161660346102 is 201643066161.

It is a happy number.

161660346102 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 6 + 0 + 34 + 610 + 2 = 666.

It is a super-2 number, since 2×161660346102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166316743 + ... + 166317714.

It is an arithmetic number, because the mean of its divisors is an integer number (15134867839).

Almost surely, 2^161660346102 is an apocalyptic number.

161660346102 is an abundant number, since it is smaller than the sum of its proper divisors (201576482034).

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

161660346102 is an equidigital number, since it uses as much as digits as its factorization.

161660346102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332634474 (or 332634462 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 161660346102 in words is "one hundred sixty-one billion, six hundred sixty million, three hundred forty-six thousand, one hundred two".