6155515680 has 192 divisors, whose sum is σ = 19740672000. Its totient is φ = 1612016640.

The previous prime is 6155515657. The next prime is 6155515699. The reversal of 6155515680 is 865155516.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10276021 + ... + 10276619.

It is an arithmetic number, because the mean of its divisors is an integer number (102816000).

Almost surely, 2^6155515680 is an apocalyptic number.

6155515680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6155515680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9870336000).

6155515680 is an abundant number, since it is smaller than the sum of its proper divisors (13585156320).

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

6155515680 is a wasteful number, since it uses less digits than its factorization.

6155515680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 959 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 42.

The square root of 6155515680 is about 78457.0945166847. The cubic root of 6155515680 is about 1832.6863588936.

The spelling of 6155515680 in words is "six billion, one hundred fifty-five million, five hundred fifteen thousand, six hundred eighty".