36250621661 has 4 divisors (see below), whose sum is σ = 36267779772. Its totient is φ = 36233463552.

The previous prime is 36250621643. The next prime is 36250621663. The reversal of 36250621661 is 16612605263.

It is a happy number.

36250621661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8087404900 + 28163216761 = 89930^2 + 167819^2 .

It is a cyclic number.

It is not a de Polignac number, because 36250621661 - 2¹⁴ = 36250605277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36250621663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8575886 + ... + 8580111.

It is an arithmetic number, because the mean of its divisors is an integer number (9066944943).

Almost surely, 2^36250621661 is an apocalyptic number.

It is an amenable number.

36250621661 is a deficient number, since it is larger than the sum of its proper divisors (17158111).

36250621661 is a wasteful number, since it uses less digits than its factorization.

36250621661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17158110.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 36250621661 in words is "thirty-six billion, two hundred fifty million, six hundred twenty-one thousand, six hundred sixty-one".