38455400170661 has 4 divisors (see below), whose sum is σ = 38576710581612. Its totient is φ = 38334089759712.

The previous prime is 38455400170637. The next prime is 38455400170673. The reversal of 38455400170661 is 16607100455483.

38455400170661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20110291802500 + 18345108368161 = 4484450^2 + 4283119^2 .

It is a cyclic number.

It is not a de Polignac number, because 38455400170661 - 2¹⁴ = 38455400154277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38455400170601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60655205000 + ... + 60655205633.

It is an arithmetic number, because the mean of its divisors is an integer number (9644177645403).

Almost surely, 2^{38455400170661} is an apocalyptic number.

It is an amenable number.

38455400170661 is a deficient number, since it is larger than the sum of its proper divisors (121310410951).

38455400170661 is a wasteful number, since it uses less digits than its factorization.

38455400170661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121310410950.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 38455400170661 in words is "thirty-eight trillion, four hundred fifty-five billion, four hundred million, one hundred seventy thousand, six hundred sixty-one".