1615166560 has 96 divisors (see below), whose sum is σ = 4368494592. Its totient is φ = 552814080.

The previous prime is 1615166551. The next prime is 1615166563. The reversal of 1615166560 is 656615161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1615166563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1019529 + ... + 1021111.

It is an arithmetic number, because the mean of its divisors is an integer number (45505152).

Almost surely, 2^1615166560 is an apocalyptic number.

1615166560 is a gapful number since it is divisible by the number (10) 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 1615166560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2184247296).

1615166560 is an abundant number, since it is smaller than the sum of its proper divisors (2753328032).

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

1615166560 is a wasteful number, since it uses less digits than its factorization.

1615166560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2516 (or 2508 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 1615166560 is about 40189.1348501059. The cubic root of 1615166560 is about 1173.2910869201.

The spelling of 1615166560 in words is "one billion, six hundred fifteen million, one hundred sixty-six thousand, five hundred sixty".