1565379390960 has 960 divisors, whose sum is σ = 7067927623680. Its totient is φ = 311122944000.

The previous prime is 1565379390941. The next prime is 1565379390977. The reversal of 1565379390960 is 690939735651.

1565379390960 is a `hidden beast` number, since 1 + 5 + 6 + 537 + 9 + 3 + 9 + 0 + 96 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 42060360 + ... + 42097560.

It is an arithmetic number, because the mean of its divisors is an integer number (7362424608).

Almost surely, 2^{1565379390960} is an apocalyptic number.

1565379390960 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 1565379390960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3533963811840).

1565379390960 is an abundant number, since it is smaller than the sum of its proper divisors (5502548232720).

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

1565379390960 is a wasteful number, since it uses less digits than its factorization.

1565379390960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37275 (or 37252 counting only the distinct ones).

The product of its (nonzero) digits is 41334300, while the sum is 63.

The spelling of 1565379390960 in words is "one trillion, five hundred sixty-five billion, three hundred seventy-nine million, three hundred ninety thousand, nine hundred sixty".