2170956801 has 8 divisors (see below), whose sum is σ = 3117271360. Its totient is φ = 1335973392.

The previous prime is 2170956773. The next prime is 2170956803. The reversal of 2170956801 is 1086590712.

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

It is not a de Polignac number, because 2170956801 - 2⁹ = 2170956289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 55665559 = 2170956801 / (2 + 1 + 7 + 0 + 9 + 5 + 6 + 8 + 0 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2170956801.

It is not an unprimeable number, because it can be changed into a prime (2170956803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27832741 + ... + 27832818.

It is an arithmetic number, because the mean of its divisors is an integer number (389658920).

Almost surely, 2^2170956801 is an apocalyptic number.

It is an amenable number.

2170956801 is a deficient number, since it is larger than the sum of its proper divisors (946314559).

2170956801 is a wasteful number, since it uses less digits than its factorization.

2170956801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55665575.

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 2170956801 is about 46593.5274582211. The cubic root of 2170956801 is about 1294.8428427425.

The spelling of 2170956801 in words is "two billion, one hundred seventy million, nine hundred fifty-six thousand, eight hundred one".