2161461652 has 12 divisors (see below), whose sum is σ = 4322923360. Its totient is φ = 926340696.

The previous prime is 2161461629. The next prime is 2161461661. The reversal of 2161461652 is 2561641612.

2161461652 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38597502 + ... + 38597557.

Almost surely, 2^2161461652 is an apocalyptic number.

It is an amenable number.

2161461652 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2161461652 is a wasteful number, since it uses less digits than its factorization.

2161461652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77195070 (or 77195068 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 2161461652 is about 46491.5223669864. The cubic root of 2161461652 is about 1292.9523254759.

The spelling of 2161461652 in words is "two billion, one hundred sixty-one million, four hundred sixty-one thousand, six hundred fifty-two".