615980703240 has 480 divisors, whose sum is σ = 2411610537600. Its totient is φ = 140608016640.

The previous prime is 615980703109. The next prime is 615980703251. The reversal of 615980703240 is 42307089516.

615980703240 is a `hidden beast` number, since 615 + 9 + 8 + 0 + 7 + 0 + 3 + 24 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 144628231 + ... + 144632489.

It is an arithmetic number, because the mean of its divisors is an integer number (5024188620).

It is a 1-persistent number, because it is pandigital, but 2⋅615980703240 = 1231961406480 is not.

Almost surely, 2^615980703240 is an apocalyptic number.

615980703240 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 615980703240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1205805268800).

615980703240 is an abundant number, since it is smaller than the sum of its proper divisors (1795629834360).

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

615980703240 is a wasteful number, since it uses less digits than its factorization.

615980703240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5207 (or 5187 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 615980703240 in words is "six hundred fifteen billion, nine hundred eighty million, seven hundred three thousand, two hundred forty".