161399697710 has 8 divisors (see below), whose sum is σ = 290519455896. Its totient is φ = 64559879080.

The previous prime is 161399697619. The next prime is 161399697721. The reversal of 161399697710 is 17796993161.

161399697710 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 161399697710.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8069984876 + ... + 8069984895.

It is an arithmetic number, because the mean of its divisors is an integer number (36314931987).

Almost surely, 2^161399697710 is an apocalyptic number.

161399697710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161399697710 is a deficient number, since it is larger than the sum of its proper divisors (129119758186).

161399697710 is a wasteful number, since it uses less digits than its factorization.

161399697710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16139969778.

The product of its (nonzero) digits is 3857868, while the sum is 59.

The spelling of 161399697710 in words is "one hundred sixty-one billion, three hundred ninety-nine million, six hundred ninety-seven thousand, seven hundred ten".