2164256135371 has 4 divisors (see below), whose sum is σ = 2361006693144. Its totient is φ = 1967505577600.

The previous prime is 2164256135329. The next prime is 2164256135383. The reversal of 2164256135371 is 1735316524612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2164256135371 - 2¹⁷ = 2164256004299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2164256135311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98375278870 + ... + 98375278891.

It is an arithmetic number, because the mean of its divisors is an integer number (590251673286).

Almost surely, 2^{2164256135371} is an apocalyptic number.

2164256135371 is a deficient number, since it is larger than the sum of its proper divisors (196750557773).

2164256135371 is a wasteful number, since it uses less digits than its factorization.

2164256135371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196750557772.

The product of its digits is 907200, while the sum is 46.

The spelling of 2164256135371 in words is "two trillion, one hundred sixty-four billion, two hundred fifty-six million, one hundred thirty-five thousand, three hundred seventy-one".