6320400155 has 8 divisors (see below), whose sum is σ = 7585812000. Its totient is φ = 5055432256.

The previous prime is 6320400139. The next prime is 6320400209. The reversal of 6320400155 is 5510040236.

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

It is a cyclic number.

It is not a de Polignac number, because 6320400155 - 2⁴ = 6320400139 is a prime.

It is an unprimeable number.

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, 78815 + ... + 137304.

It is an arithmetic number, because the mean of its divisors is an integer number (948226500).

Almost surely, 2^6320400155 is an apocalyptic number.

6320400155 is a deficient number, since it is larger than the sum of its proper divisors (1265411845).

6320400155 is a wasteful number, since it uses less digits than its factorization.

6320400155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221973.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 6320400155 is about 79500.9443654602. The cubic root of 6320400155 is about 1848.9061130013.

The spelling of 6320400155 in words is "six billion, three hundred twenty million, four hundred thousand, one hundred fifty-five".