20573116388 has 24 divisors (see below), whose sum is σ = 39285479520. Its totient is φ = 9349147520.

The previous prime is 20573116373. The next prime is 20573116393. The reversal of 20573116388 is 88361137502.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133868 + ... + 243036.

It is an arithmetic number, because the mean of its divisors is an integer number (1636894980).

Almost surely, 2^20573116388 is an apocalyptic number.

It is an amenable number.

20573116388 is a deficient number, since it is larger than the sum of its proper divisors (18712363132).

20573116388 is a wasteful number, since it uses less digits than its factorization.

20573116388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113467 (or 113465 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 20573116388 in words is "twenty billion, five hundred seventy-three million, one hundred sixteen thousand, three hundred eighty-eight".