6400155345 has 16 divisors (see below), whose sum is σ = 10245424320. Its totient is φ = 3411690944.

The previous prime is 6400155341. The next prime is 6400155347. The reversal of 6400155345 is 5435510046.

It is a cyclic number.

It is not a de Polignac number, because 6400155345 - 2² = 6400155341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6400155341) 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, 76875 + ... + 136784.

It is an arithmetic number, because the mean of its divisors is an integer number (640339020).

Almost surely, 2^6400155345 is an apocalyptic number.

It is an amenable number.

6400155345 is a deficient number, since it is larger than the sum of its proper divisors (3845268975).

6400155345 is a wasteful number, since it uses less digits than its factorization.

6400155345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215664.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 6400155345 is about 80000.9709003585. The cubic root of 6400155345 is about 1856.6505551489.

The spelling of 6400155345 in words is "six billion, four hundred million, one hundred fifty-five thousand, three hundred forty-five".