615601361232 has 320 divisors, whose sum is σ = 2088386334720. Its totient is φ = 171162201600.

The previous prime is 615601361201. The next prime is 615601361239. The reversal of 615601361232 is 232163106516.

615601361232 is a `hidden beast` number, since 6 + 1 + 5 + 6 + 0 + 1 + 3 + 612 + 32 = 666.

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 (615601361239) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10286757 + ... + 10346427.

It is an arithmetic number, because the mean of its divisors is an integer number (6526207296).

Almost surely, 2^615601361232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 615601361232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1044193167360).

615601361232 is an abundant number, since it is smaller than the sum of its proper divisors (1472784973488).

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

615601361232 is a wasteful number, since it uses less digits than its factorization.

615601361232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59879 (or 59867 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

Adding to 615601361232 its reverse (232163106516), we get a palindrome (847764467748).

The spelling of 615601361232 in words is "six hundred fifteen billion, six hundred one million, three hundred sixty-one thousand, two hundred thirty-two".