1565283695990 has 32 divisors (see below), whose sum is σ = 3221881263360. Its totient is φ = 536357181024.

The previous prime is 1565283695957. The next prime is 1565283696007. The reversal of 1565283695990 is 995963825651.

It is a super-2 number, since 2×1565283695990² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1565283695990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6368420 + ... + 6609639.

It is an arithmetic number, because the mean of its divisors is an integer number (100683789480).

Almost surely, 2^{1565283695990} is an apocalyptic number.

1565283695990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1565283695990 is an abundant number, since it is smaller than the sum of its proper divisors (1656597567370).

1565283695990 is a wasteful number, since it uses less digits than its factorization.

1565283695990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12979796.

The product of its (nonzero) digits is 157464000, while the sum is 68.

The spelling of 1565283695990 in words is "one trillion, five hundred sixty-five billion, two hundred eighty-three million, six hundred ninety-five thousand, nine hundred ninety".