2664261406 has 16 divisors (see below), whose sum is σ = 4025772288. Its totient is φ = 1322357400.

The previous prime is 2664261371. The next prime is 2664261409. The reversal of 2664261406 is 6041624662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664261409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292501 + ... + 301471.

It is an arithmetic number, because the mean of its divisors is an integer number (251610768).

Almost surely, 2^2664261406 is an apocalyptic number.

2664261406 is a deficient number, since it is larger than the sum of its proper divisors (1361510882).

2664261406 is a wasteful number, since it uses less digits than its factorization.

2664261406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10047.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 2664261406 is about 51616.4838593254. The cubic root of 2664261406 is about 1386.3054946354.

The spelling of 2664261406 in words is "two billion, six hundred sixty-four million, two hundred sixty-one thousand, four hundred six".