20140815488 has 16 divisors (see below), whose sum is σ = 40124281110. Its totient is φ = 10070407680.

The previous prime is 20140815479. The next prime is 20140815509. The reversal of 20140815488 is 88451804102.

It can be written as a sum of positive squares in only one way, i.e., 12367219264 + 7773596224 = 111208^2 + 88168^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78674933 + ... + 78675188.

Almost surely, 2^20140815488 is an apocalyptic number.

It is an amenable number.

20140815488 is a deficient number, since it is larger than the sum of its proper divisors (19983465622).

20140815488 is an equidigital number, since it uses as much as digits as its factorization.

20140815488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157350135 (or 157350123 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 41.

The spelling of 20140815488 in words is "twenty billion, one hundred forty million, eight hundred fifteen thousand, four hundred eighty-eight".