20078332735 has 8 divisors (see below), whose sum is σ = 24200141616. Its totient is φ = 15991904640.

The previous prime is 20078332723. The next prime is 20078332763. The reversal of 20078332735 is 53723387002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20078332735 - 2⁹ = 20078332223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8843946 + ... + 8846215.

It is an arithmetic number, because the mean of its divisors is an integer number (3025017702).

Almost surely, 2^20078332735 is an apocalyptic number.

20078332735 is a deficient number, since it is larger than the sum of its proper divisors (4121808881).

20078332735 is a wasteful number, since it uses less digits than its factorization.

20078332735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17690393.

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 20078332735 in words is "twenty billion, seventy-eight million, three hundred thirty-two thousand, seven hundred thirty-five".