6442313155 has 16 divisors (see below), whose sum is σ = 7848347904. Its totient is φ = 5075630560.

The previous prime is 6442313113. The next prime is 6442313197. The reversal of 6442313155 is 5513132446.

It is an interprime number because it is at equal distance from previous prime (6442313113) and next prime (6442313197).

It is not a de Polignac number, because 6442313155 - 2⁷ = 6442313027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6442313155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326604 + ... + 345766.

It is an arithmetic number, because the mean of its divisors is an integer number (490521744).

Almost surely, 2^6442313155 is an apocalyptic number.

6442313155 is a deficient number, since it is larger than the sum of its proper divisors (1406034749).

6442313155 is a wasteful number, since it uses less digits than its factorization.

6442313155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20186.

The product of its digits is 43200, while the sum is 34.

The square root of 6442313155 is about 80264.0215476399. The cubic root of 6442313155 is about 1860.7182213966.

The spelling of 6442313155 in words is "six billion, four hundred forty-two million, three hundred thirteen thousand, one hundred fifty-five".