2156321360204 has 12 divisors (see below), whose sum is σ = 4116613505928. Its totient is φ = 980146072800.

The previous prime is 2156321360203. The next prime is 2156321360251. The reversal of 2156321360204 is 4020631236512.

It is not an unprimeable number, because it can be changed into a prime (2156321360203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24503651777 + ... + 24503651864.

It is an arithmetic number, because the mean of its divisors is an integer number (343051125494).

Almost surely, 2^{2156321360204} is an apocalyptic number.

It is an amenable number.

2156321360204 is a deficient number, since it is larger than the sum of its proper divisors (1960292145724).

2156321360204 is a wasteful number, since it uses less digits than its factorization.

2156321360204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49007303656 (or 49007303654 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 2156321360204 its reverse (4020631236512), we get a palindrome (6176952596716).

The spelling of 2156321360204 in words is "two trillion, one hundred fifty-six billion, three hundred twenty-one million, three hundred sixty thousand, two hundred four".