20653020364 has 48 divisors (see below), whose sum is σ = 38594556000. Its totient is φ = 9652697600.

The previous prime is 20653020347. The next prime is 20653020371. The reversal of 20653020364 is 46302035602.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606462 + ... + 639610.

It is an arithmetic number, because the mean of its divisors is an integer number (804053250).

Almost surely, 2^20653020364 is an apocalyptic number.

It is an amenable number.

20653020364 is a deficient number, since it is larger than the sum of its proper divisors (17941535636).

20653020364 is a wasteful number, since it uses less digits than its factorization.

20653020364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33354 (or 33352 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 20653020364 its reverse (46302035602), we get a palindrome (66955055966).

The spelling of 20653020364 in words is "twenty billion, six hundred fifty-three million, twenty thousand, three hundred sixty-four".