6156550620 has 288 divisors, whose sum is σ = 22029396480. Its totient is φ = 1375418880.

The previous prime is 6156550607. The next prime is 6156550627. The reversal of 6156550620 is 260556516.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6156550627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1389729 + ... + 1394151.

It is an arithmetic number, because the mean of its divisors is an integer number (76490960).

Almost surely, 2^6156550620 is an apocalyptic number.

6156550620 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 6156550620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11014698240).

6156550620 is an abundant number, since it is smaller than the sum of its proper divisors (15872845860).

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

6156550620 is a wasteful number, since it uses less digits than its factorization.

6156550620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4505 (or 4500 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 6156550620 is about 78463.6898189220. The cubic root of 6156550620 is about 1832.7890642952.

The spelling of 6156550620 in words is "six billion, one hundred fifty-six million, five hundred fifty thousand, six hundred twenty".