2664257361 has 8 divisors (see below), whose sum is σ = 3557836224. Its totient is φ = 1773425040.

The previous prime is 2664257359. The next prime is 2664257381. The reversal of 2664257361 is 1637524662.

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

It is not a de Polignac number, because 2664257361 - 2¹ = 2664257359 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2664257381) 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, 684370 + ... + 688251.

It is an arithmetic number, because the mean of its divisors is an integer number (444729528).

Almost surely, 2^2664257361 is an apocalyptic number.

It is an amenable number.

2664257361 is a deficient number, since it is larger than the sum of its proper divisors (893578863).

2664257361 is a wasteful number, since it uses less digits than its factorization.

2664257361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373271.

The product of its digits is 362880, while the sum is 42.

The square root of 2664257361 is about 51616.4446760914. Note that the first 3 decimals coincide. The cubic root of 2664257361 is about 1386.3047930515.

The spelling of 2664257361 in words is "two billion, six hundred sixty-four million, two hundred fifty-seven thousand, three hundred sixty-one".