20499114377 has 48 divisors (see below), whose sum is σ = 25232760000. Its totient is φ = 16580640384.

The previous prime is 20499114353. The next prime is 20499114397. The reversal of 20499114377 is 77341199402.

It is not a de Polignac number, because 20499114377 - 2⁶ = 20499114313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20499114397) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13232999 + ... + 13234547.

It is an arithmetic number, because the mean of its divisors is an integer number (525682500).

Almost surely, 2^20499114377 is an apocalyptic number.

It is an amenable number.

20499114377 is a deficient number, since it is larger than the sum of its proper divisors (4733645623).

20499114377 is a wasteful number, since it uses less digits than its factorization.

20499114377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798 (or 1791 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 20499114377 in words is "twenty billion, four hundred ninety-nine million, one hundred fourteen thousand, three hundred seventy-seven".