6155541504 has 396 divisors, whose sum is σ = 21223443384. Its totient is φ = 1712406528.

The previous prime is 6155541499. The next prime is 6155541523. The reversal of 6155541504 is 4051455516.

6155541504 is a `hidden beast` number, since 61 + 5 + 5 + 541 + 50 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19417954 + ... + 19418270.

It is an arithmetic number, because the mean of its divisors is an integer number (53594554).

Almost surely, 2^6155541504 is an apocalyptic number.

6155541504 is a gapful number since it is divisible by the number (64) 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 6155541504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10611721692).

6155541504 is an abundant number, since it is smaller than the sum of its proper divisors (15067901880).

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

6155541504 is a wasteful number, since it uses less digits than its factorization.

6155541504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The square root of 6155541504 is about 78457.2590905392. The cubic root of 6155541504 is about 1832.6889217564.

The spelling of 6155541504 in words is "six billion, one hundred fifty-five million, five hundred forty-one thousand, five hundred four".