35621565012 has 144 divisors (see below), whose sum is σ = 103010806080. Its totient is φ = 10279180800.

The previous prime is 35621564999. The next prime is 35621565017. The reversal of 35621565012 is 21056512653.

35621565012 is a `hidden beast` number, since 35 + 62 + 1 + 565 + 0 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35621565017) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 817087 + ... + 859577.

It is an arithmetic number, because the mean of its divisors is an integer number (715352820).

Almost surely, 2^35621565012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 35621565012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51505403040).

35621565012 is an abundant number, since it is smaller than the sum of its proper divisors (67389241068).

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

35621565012 is a wasteful number, since it uses less digits than its factorization.

35621565012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42614 (or 42609 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 35621565012 in words is "thirty-five billion, six hundred twenty-one million, five hundred sixty-five thousand, twelve".