20315252337 has 16 divisors (see below), whose sum is σ = 27219658752. Its totient is φ = 13477335120.

The previous prime is 20315252329. The next prime is 20315252429. The reversal of 20315252337 is 73325251302.

It is a happy number.

It is not a de Polignac number, because 20315252337 - 2³ = 20315252329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20315252298 and 20315252307.

It is not an unprimeable number, because it can be changed into a prime (20315252437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494412 + ... + 533922.

It is an arithmetic number, because the mean of its divisors is an integer number (1701228672).

Almost surely, 2^20315252337 is an apocalyptic number.

It is an amenable number.

20315252337 is a deficient number, since it is larger than the sum of its proper divisors (6904406415).

20315252337 is a wasteful number, since it uses less digits than its factorization.

20315252337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40348.

The product of its (nonzero) digits is 37800, while the sum is 33.

The spelling of 20315252337 in words is "twenty billion, three hundred fifteen million, two hundred fifty-two thousand, three hundred thirty-seven".