2161422464610 has 128 divisors (see below), whose sum is σ = 5371904655360. Its totient is φ = 556001971200.

The previous prime is 2161422464603. The next prime is 2161422464633. The reversal of 2161422464610 is 164642241612.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 750753151 + ... + 750756029.

It is an arithmetic number, because the mean of its divisors is an integer number (41968005120).

Almost surely, 2^{2161422464610} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2161422464610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2685952327680).

2161422464610 is an abundant number, since it is smaller than the sum of its proper divisors (3210482190750).

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

2161422464610 is a wasteful number, since it uses less digits than its factorization.

2161422464610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5224.

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 2161422464610 in words is "two trillion, one hundred sixty-one billion, four hundred twenty-two million, four hundred sixty-four thousand, six hundred ten".