2161377703619 has 8 divisors (see below), whose sum is σ = 2165577988080. Its totient is φ = 2157177678336.

The previous prime is 2161377703609. The next prime is 2161377703621. The reversal of 2161377703619 is 9163077731612.

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

It is a cyclic number.

It is not a de Polignac number, because 2161377703619 - 2⁴⁰ = 1061866075843 is a prime.

It is a super-2 number, since 2×2161377703619² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2161377703609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30763859 + ... + 30834035.

It is an arithmetic number, because the mean of its divisors is an integer number (270697248510).

Almost surely, 2^{2161377703619} is an apocalyptic number.

2161377703619 is a deficient number, since it is larger than the sum of its proper divisors (4200284461).

2161377703619 is an equidigital number, since it uses as much as digits as its factorization.

2161377703619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129589.

The product of its (nonzero) digits is 2000376, while the sum is 53.

The spelling of 2161377703619 in words is "two trillion, one hundred sixty-one billion, three hundred seventy-seven million, seven hundred three thousand, six hundred nineteen".