147720257606 has 16 divisors (see below), whose sum is σ = 234637781616. Its totient is φ = 69508525056.

The previous prime is 147720257603. The next prime is 147720257609. The reversal of 147720257606 is 606752027741.

147720257606 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (147720257603) and next prime (147720257609).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147720257603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141305 + ... + 561611.

It is an arithmetic number, because the mean of its divisors is an integer number (14664861351).

Almost surely, 2^147720257606 is an apocalyptic number.

147720257606 is a deficient number, since it is larger than the sum of its proper divisors (86917524010).

147720257606 is a wasteful number, since it uses less digits than its factorization.

147720257606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430663.

The product of its (nonzero) digits is 987840, while the sum is 47.

The spelling of 147720257606 in words is "one hundred forty-seven billion, seven hundred twenty million, two hundred fifty-seven thousand, six hundred six".