161106711620 has 24 divisors (see below), whose sum is σ = 338462457984. Its totient is φ = 64416329696.

The previous prime is 161106711617. The next prime is 161106711671. The reversal of 161106711620 is 26117601161.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1597022 + ... + 1694901.

It is an arithmetic number, because the mean of its divisors is an integer number (14102602416).

Almost surely, 2^161106711620 is an apocalyptic number.

161106711620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161106711620 is an abundant number, since it is smaller than the sum of its proper divisors (177355746364).

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

161106711620 is a wasteful number, since it uses less digits than its factorization.

161106711620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3294379 (or 3294377 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 32.

The spelling of 161106711620 in words is "one hundred sixty-one billion, one hundred six million, seven hundred eleven thousand, six hundred twenty".