2161196037 has 48 divisors (see below), whose sum is σ = 4191427968. Its totient is φ = 1036333440.

The previous prime is 2161196033. The next prime is 2161196071. The reversal of 2161196037 is 7306911612.

2161196037 is a `hidden beast` number, since 2 + 1 + 611 + 9 + 6 + 0 + 37 = 666.

It is not a de Polignac number, because 2161196037 - 2² = 2161196033 is a prime.

It is a super-3 number, since 3×2161196037³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2161195992 and 2161196010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161196033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 110938 + ... + 128955.

It is an arithmetic number, because the mean of its divisors is an integer number (87321416).

Almost surely, 2^2161196037 is an apocalyptic number.

It is an amenable number.

2161196037 is a deficient number, since it is larger than the sum of its proper divisors (2030231931).

2161196037 is a wasteful number, since it uses less digits than its factorization.

2161196037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239930 (or 239927 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 2161196037 is about 46488.6656831534. The cubic root of 2161196037 is about 1292.8993610694.

The spelling of 2161196037 in words is "two billion, one hundred sixty-one million, one hundred ninety-six thousand, thirty-seven".