6155315838 has 24 divisors (see below), whose sum is σ = 15241734768. Its totient is φ = 1758661632.

The previous prime is 6155315813. The next prime is 6155315839. The reversal of 6155315838 is 8385135516.

6155315838 is a `hidden beast` number, since 6 + 1 + 553 + 15 + 83 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6155315793 and 6155315802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6155315839) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24425731 + ... + 24425982.

It is an arithmetic number, because the mean of its divisors is an integer number (635072282).

Almost surely, 2^6155315838 is an apocalyptic number.

6155315838 is an abundant number, since it is smaller than the sum of its proper divisors (9086418930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6155315838 is a wasteful number, since it uses less digits than its factorization.

6155315838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48851728 (or 48851725 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 6155315838 is about 78455.8209312732. The cubic root of 6155315838 is about 1832.6665256422. Note that the first 3 decimals are identical.

The spelling of 6155315838 in words is "six billion, one hundred fifty-five million, three hundred fifteen thousand, eight hundred thirty-eight".