202306663157 has 8 divisors (see below), whose sum is σ = 209411910840. Its totient is φ = 195210025920.

The previous prime is 202306663073. The next prime is 202306663159. The reversal of 202306663157 is 751366603202.

It can be written as a sum of positive squares in 4 ways, for example, as 15303174436 + 187003488721 = 123706^2 + 432439^2 .

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 202306663157 - 2¹⁸ = 202306401013 is a prime.

It is a super-2 number, since 2×202306663157² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202306663159) 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, 2104778 + ... + 2198795.

It is an arithmetic number, because the mean of its divisors is an integer number (26176488855).

Almost surely, 2^202306663157 is an apocalyptic number.

It is an amenable number.

202306663157 is a deficient number, since it is larger than the sum of its proper divisors (7105247683).

202306663157 is a wasteful number, since it uses less digits than its factorization.

202306663157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4305223.

The product of its (nonzero) digits is 272160, while the sum is 41.

The spelling of 202306663157 in words is "two hundred two billion, three hundred six million, six hundred sixty-three thousand, one hundred fifty-seven".