616340880 has 80 divisors (see below), whose sum is σ = 2122959360. Its totient is φ = 164356992.

The previous prime is 616340761. The next prime is 616340891. The reversal of 616340880 is 88043616.

It is a happy number.

616340880 is a `hidden beast` number, since 616 + 34 + 0 + 8 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140512 + ... + 144831.

It is an arithmetic number, because the mean of its divisors is an integer number (26536992).

Almost surely, 2^616340880 is an apocalyptic number.

616340880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

616340880 is an abundant number, since it is smaller than the sum of its proper divisors (1506618480).

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

616340880 is a wasteful number, since it uses less digits than its factorization.

616340880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285365 (or 285353 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 616340880 is about 24826.2135655037. The cubic root of 616340880 is about 851.0210935289.

The spelling of 616340880 in words is "six hundred sixteen million, three hundred forty thousand, eight hundred eighty".