20528671415 has 16 divisors (see below), whose sum is σ = 28411901760. Its totient is φ = 13947655680.

The previous prime is 20528671399. The next prime is 20528671451. The reversal of 20528671415 is 51417682502.

It is not a de Polignac number, because 20528671415 - 2⁴ = 20528671399 is a prime.

It is a congruent 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, 2686706 + ... + 2694335.

It is an arithmetic number, because the mean of its divisors is an integer number (1775743860).

Almost surely, 2^20528671415 is an apocalyptic number.

20528671415 is a deficient number, since it is larger than the sum of its proper divisors (7883230345).

20528671415 is a wasteful number, since it uses less digits than its factorization.

20528671415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5381162.

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 20528671415 in words is "twenty billion, five hundred twenty-eight million, six hundred seventy-one thousand, four hundred fifteen".