38680203356665 has 32 divisors (see below), whose sum is σ = 51206776740000. Its totient is φ = 27866693191680.

The previous prime is 38680203356659. The next prime is 38680203356783. The reversal of 38680203356665 is 56665330208683.

It can be written as a sum of positive squares in 16 ways, for example, as 26669653647289 + 12010549709376 = 5164267^2 + 3465624^2 .

It is not a de Polignac number, because 38680203356665 - 2⁵ = 38680203356633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 267890911 + ... + 268035259.

It is an arithmetic number, because the mean of its divisors is an integer number (1600211773125).

Almost surely, 2^{38680203356665} is an apocalyptic number.

It is an amenable number.

38680203356665 is a deficient number, since it is larger than the sum of its proper divisors (12526573383335).

38680203356665 is a wasteful number, since it uses less digits than its factorization.

38680203356665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244957.

The product of its (nonzero) digits is 111974400, while the sum is 61.

The spelling of 38680203356665 in words is "thirty-eight trillion, six hundred eighty billion, two hundred three million, three hundred fifty-six thousand, six hundred sixty-five".