147602785661 has 4 divisors (see below), whose sum is σ = 147953386524. Its totient is φ = 147252184800.

The previous prime is 147602785633. The next prime is 147602785717. The reversal of 147602785661 is 166587206741.

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 37169526436 + 110433259225 = 192794^2 + 332315^2 .

It is a cyclic number.

It is not a de Polignac number, because 147602785661 - 2¹⁴ = 147602769277 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 (147602785601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175299800 + ... + 175300641.

It is an arithmetic number, because the mean of its divisors is an integer number (36988346631).

Almost surely, 2^147602785661 is an apocalyptic number.

It is an amenable number.

147602785661 is a deficient number, since it is larger than the sum of its proper divisors (350600863).

147602785661 is an equidigital number, since it uses as much as digits as its factorization.

147602785661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350600862.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 147602785661 in words is "one hundred forty-seven billion, six hundred two million, seven hundred eighty-five thousand, six hundred sixty-one".