163711561054 has 4 divisors (see below), whose sum is σ = 245567341584. Its totient is φ = 81855780526.

The previous prime is 163711561051. The next prime is 163711561147. The reversal of 163711561054 is 450165117361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 450165117361 = 23 ⋅19572396407.

It is a junction number, because it is equal to n+sod(n) for n = 163711560998 and 163711561016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163711561051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40927890262 + ... + 40927890265.

It is an arithmetic number, because the mean of its divisors is an integer number (61391835396).

Almost surely, 2^163711561054 is an apocalyptic number.

163711561054 is a deficient number, since it is larger than the sum of its proper divisors (81855780530).

163711561054 is an equidigital number, since it uses as much as digits as its factorization.

163711561054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81855780529.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 163711561054 in words is "one hundred sixty-three billion, seven hundred eleven million, five hundred sixty-one thousand, fifty-four".