20138415076 has 48 divisors (see below), whose sum is σ = 38273860800. Its totient is φ = 9216289152.

The previous prime is 20138415061. The next prime is 20138415163. The reversal of 20138415076 is 67051483102.

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, 9098946 + ... + 9101158.

It is an arithmetic number, because the mean of its divisors is an integer number (797372100).

Almost surely, 2^20138415076 is an apocalyptic number.

20138415076 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20138415076 is a deficient number, since it is larger than the sum of its proper divisors (18135445724).

20138415076 is a wasteful number, since it uses less digits than its factorization.

20138415076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628 (or 3626 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

Adding to 20138415076 its reverse (67051483102), we get a palindrome (87189898178).

The spelling of 20138415076 in words is "twenty billion, one hundred thirty-eight million, four hundred fifteen thousand, seventy-six".