83215552010245 has 4 divisors (see below), whose sum is σ = 99858662412300. Its totient is φ = 66572441608192.

The previous prime is 83215552010243. The next prime is 83215552010249. The reversal of 83215552010245 is 54201025551238.

It is a happy number.

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 24734140595649 + 58481411414596 = 4973343^2 + 7647314^2 .

It is a cyclic number.

It is not a de Polignac number, because 83215552010245 - 2¹ = 83215552010243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83215552010243) 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, 8321555201020 + ... + 8321555201029.

It is an arithmetic number, because the mean of its divisors is an integer number (24964665603075).

Almost surely, 2^{83215552010245} is an apocalyptic number.

It is an amenable number.

83215552010245 is a deficient number, since it is larger than the sum of its proper divisors (16643110402055).

83215552010245 is a wasteful number, since it uses less digits than its factorization.

83215552010245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16643110402054.

The product of its (nonzero) digits is 480000, while the sum is 43.

The spelling of 83215552010245 in words is "eighty-three trillion, two hundred fifteen billion, five hundred fifty-two million, ten thousand, two hundred forty-five".