161111167201662 has 32 divisors (see below), whose sum is σ = 336233753989632. Its totient is φ = 51368510148384.

The previous prime is 161111167201601. The next prime is 161111167201681. The reversal of 161111167201662 is 266102761111161.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24418183 + ... + 30306269.

It is an arithmetic number, because the mean of its divisors is an integer number (10507304812176).

Almost surely, 2^{161111167201662} is an apocalyptic number.

161111167201662 is an abundant number, since it is smaller than the sum of its proper divisors (175122586787970).

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

161111167201662 is a wasteful number, since it uses less digits than its factorization.

161111167201662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086392.

The product of its (nonzero) digits is 36288, while the sum is 42.

The spelling of 161111167201662 in words is "one hundred sixty-one trillion, one hundred eleven billion, one hundred sixty-seven million, two hundred one thousand, six hundred sixty-two".