616147620 has 96 divisors (see below), whose sum is σ = 1914071040. Its totient is φ = 146828160.

The previous prime is 616147619. The next prime is 616147639. The reversal of 616147620 is 26741616.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 31029 + ... + 46851.

It is an arithmetic number, because the mean of its divisors is an integer number (19938240).

Almost surely, 2^616147620 is an apocalyptic number.

616147620 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 616147620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (957035520).

616147620 is an abundant number, since it is smaller than the sum of its proper divisors (1297923420).

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

616147620 is a wasteful number, since it uses less digits than its factorization.

616147620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15905 (or 15903 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 616147620 is about 24822.3210034839. The cubic root of 616147620 is about 850.9321354349.

The spelling of 616147620 in words is "six hundred sixteen million, one hundred forty-seven thousand, six hundred twenty".