615045245460 has 96 divisors (see below), whose sum is σ = 1783357551360. Its totient is φ = 158192283648.

The previous prime is 615045245453. The next prime is 615045245519. The reversal of 615045245460 is 64542540516.

It is a super-2 number, since 2×615045245460² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1499812 + ... + 1865348.

It is an arithmetic number, because the mean of its divisors is an integer number (18576641160).

Almost surely, 2^615045245460 is an apocalyptic number.

615045245460 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 615045245460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (891678775680).

615045245460 is an abundant number, since it is smaller than the sum of its proper divisors (1168312305900).

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

615045245460 is a wasteful number, since it uses less digits than its factorization.

615045245460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366545 (or 366543 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

Adding to 615045245460 its reverse (64542540516), we get a palindrome (679587785976).

The spelling of 615045245460 in words is "six hundred fifteen billion, forty-five million, two hundred forty-five thousand, four hundred sixty".