20415135662 has 16 divisors (see below), whose sum is σ = 32404188672. Its totient is φ = 9626241240.

The previous prime is 20415135649. The next prime is 20415135673. The reversal of 20415135662 is 26653151402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3122138 + ... + 3128669.

It is an arithmetic number, because the mean of its divisors is an integer number (2025261792).

Almost surely, 2^20415135662 is an apocalyptic number.

20415135662 is a deficient number, since it is larger than the sum of its proper divisors (11989053010).

20415135662 is a wasteful number, since it uses less digits than its factorization.

20415135662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6250903.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 20415135662 in words is "twenty billion, four hundred fifteen million, one hundred thirty-five thousand, six hundred sixty-two".