6403615316155 has 8 divisors (see below), whose sum is σ = 7932220262784. Its totient is φ = 4957637664000.

The previous prime is 6403615316053. The next prime is 6403615316171. The reversal of 6403615316155 is 5516135163046.

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

It is a de Polignac number, because none of the positive numbers 2^k-6403615316155 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20656823446 + ... + 20656823755.

It is an arithmetic number, because the mean of its divisors is an integer number (991527532848).

Almost surely, 2^{6403615316155} is an apocalyptic number.

6403615316155 is a deficient number, since it is larger than the sum of its proper divisors (1528604946629).

6403615316155 is a wasteful number, since it uses less digits than its factorization.

6403615316155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41313647237.

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 6403615316155 in words is "six trillion, four hundred three billion, six hundred fifteen million, three hundred sixteen thousand, one hundred fifty-five".