2036021556 has 24 divisors (see below), whose sum is σ = 4755509920. Its totient is φ = 677989152.

The previous prime is 2036021549. The next prime is 2036021567. The reversal of 2036021556 is 6551206302.

It is a super-2 number, since 2×2036021556² = 8290767552993322272, which 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73126 + ... + 97053.

Almost surely, 2^2036021556 is an apocalyptic number.

It is an amenable number.

2036021556 is an abundant number, since it is smaller than the sum of its proper divisors (2719488364).

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

2036021556 is a wasteful number, since it uses less digits than its factorization.

2036021556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171183 (or 171181 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2036021556 is about 45122.2955533071. The cubic root of 2036021556 is about 1267.4401401808.

Adding to 2036021556 its reverse (6551206302), we get a palindrome (8587227858).

The spelling of 2036021556 in words is "two billion, thirty-six million, twenty-one thousand, five hundred fifty-six".