2156065542322 has 8 divisors (see below), whose sum is σ = 3236324125356. Its totient is φ = 1077290833872.

The previous prime is 2156065542317. The next prime is 2156065542341. The reversal of 2156065542322 is 2232455606512.

It can be written as a sum of positive squares in 2 ways, for example, as 1985024570281 + 171040972041 = 1408909^2 + 413571^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 370965013 + ... + 370970824.

Almost surely, 2^{2156065542322} is an apocalyptic number.

2156065542322 is a deficient number, since it is larger than the sum of its proper divisors (1080258583034).

2156065542322 is a wasteful number, since it uses less digits than its factorization.

2156065542322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741937292.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 2156065542322 in words is "two trillion, one hundred fifty-six billion, sixty-five million, five hundred forty-two thousand, three hundred twenty-two".