20020237616 has 10 divisors (see below), whose sum is σ = 38789210412. Its totient is φ = 10010118800.

The previous prime is 20020237583. The next prime is 20020237621. The reversal of 20020237616 is 61673202002.

It is a super-2 number, since 2×20020237616² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625632410 + ... + 625632441.

Almost surely, 2^20020237616 is an apocalyptic number.

It is an amenable number.

20020237616 is a deficient number, since it is larger than the sum of its proper divisors (18768972796).

20020237616 is a wasteful number, since it uses less digits than its factorization.

20020237616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251264859 (or 1251264853 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 20020237616 its reverse (61673202002), we get a palindrome (81693439618).

The spelling of 20020237616 in words is "twenty billion, twenty million, two hundred thirty-seven thousand, six hundred sixteen".