157663609 has 8 divisors (see below), whose sum is σ = 159160320. Its totient is φ = 156171600.

The previous prime is 157663607. The next prime is 157663619. The reversal of 157663609 is 906366751.

157663609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157663609 - 2¹ = 157663607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157663601) 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, 122632 + ... + 123910.

It is an arithmetic number, because the mean of its divisors is an integer number (19895040).

Almost surely, 2^157663609 is an apocalyptic number.

It is an amenable number.

157663609 is a deficient number, since it is larger than the sum of its proper divisors (1496711).

157663609 is a wasteful number, since it uses less digits than its factorization.

157663609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 157663609 is about 12556.4170446828. The cubic root of 157663609 is about 540.2280803780.

The spelling of 157663609 in words is "one hundred fifty-seven million, six hundred sixty-three thousand, six hundred nine".