163810377755 has 8 divisors (see below), whose sum is σ = 197453945472. Its totient is φ = 130460640768.

The previous prime is 163810377683. The next prime is 163810377763. The reversal of 163810377755 is 557773018361.

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

It is a cyclic number.

It is not a de Polignac number, because 163810377755 - 2¹² = 163810373659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163810377697 and 163810377706.

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, 73456454 + ... + 73458683.

It is an arithmetic number, because the mean of its divisors is an integer number (24681743184).

Almost surely, 2^163810377755 is an apocalyptic number.

163810377755 is a deficient number, since it is larger than the sum of its proper divisors (33643567717).

163810377755 is a wasteful number, since it uses less digits than its factorization.

163810377755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146915365.

The product of its (nonzero) digits is 3704400, while the sum is 53.

The spelling of 163810377755 in words is "one hundred sixty-three billion, eight hundred ten million, three hundred seventy-seven thousand, seven hundred fifty-five".