2156343604 has 24 divisors (see below), whose sum is σ = 3906524160. Its totient is φ = 1040247264.

The previous prime is 2156343599. The next prime is 2156343613. The reversal of 2156343604 is 4063436512.

It is a self number, because there is not a number n which added to its sum of digits gives 2156343604.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 177757 + ... + 189499.

It is an arithmetic number, because the mean of its divisors is an integer number (162771840).

Almost surely, 2^2156343604 is an apocalyptic number.

It is an amenable number.

2156343604 is a deficient number, since it is larger than the sum of its proper divisors (1750180556).

2156343604 is a wasteful number, since it uses less digits than its factorization.

2156343604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13359 (or 13357 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 2156343604 is about 46436.4469355699. The cubic root of 2156343604 is about 1291.9310070287.

The spelling of 2156343604 in words is "two billion, one hundred fifty-six million, three hundred forty-three thousand, six hundred four".