6240655905 has 16 divisors (see below), whose sum is σ = 10892781504. Its totient is φ = 3025772480.

The previous prime is 6240655903. The next prime is 6240655907. The reversal of 6240655905 is 5095560426.

It is an interprime number because it is at equal distance from previous prime (6240655903) and next prime (6240655907).

It is not a de Polignac number, because 6240655905 - 2¹ = 6240655903 is a prime.

It is a super-2 number, since 2×6240655905² = 77891572249222738050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6240655903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18910914 + ... + 18911243.

It is an arithmetic number, because the mean of its divisors is an integer number (680798844).

Almost surely, 2^6240655905 is an apocalyptic number.

It is an amenable number.

6240655905 is a deficient number, since it is larger than the sum of its proper divisors (4652125599).

6240655905 is a wasteful number, since it uses less digits than its factorization.

6240655905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37822176.

The product of its (nonzero) digits is 324000, while the sum is 42.

The square root of 6240655905 is about 78997.8221535252. The cubic root of 6240655905 is about 1841.0973197255.

The spelling of 6240655905 in words is "six billion, two hundred forty million, six hundred fifty-five thousand, nine hundred five".