36021661403 has 48 divisors (see below), whose sum is σ = 48058516800. Its totient is φ = 26823186432.

The previous prime is 36021661397. The next prime is 36021661477. The reversal of 36021661403 is 30416612063.

It is not a de Polignac number, because 36021661403 - 2¹⁰ = 36021660379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36021661403.

It is not an unprimeable number, because it can be changed into a prime (36021661483) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1274675 + ... + 1302627.

It is an arithmetic number, because the mean of its divisors is an integer number (1001219100).

Almost surely, 2^36021661403 is an apocalyptic number.

36021661403 is a deficient number, since it is larger than the sum of its proper divisors (12036855397).

36021661403 is a wasteful number, since it uses less digits than its factorization.

36021661403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28021 (or 27990 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 36021661403 in words is "thirty-six billion, twenty-one million, six hundred sixty-one thousand, four hundred three".