164055054143566 has 4 divisors (see below), whose sum is σ = 246082581215352. Its totient is φ = 82027527071782.

The previous prime is 164055054143443. The next prime is 164055054143567. The reversal of 164055054143566 is 665341450550461.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164055054143567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41013763535890 + ... + 41013763535893.

It is an arithmetic number, because the mean of its divisors is an integer number (61520645303838).

Almost surely, 2^{164055054143566} is an apocalyptic number.

164055054143566 is a deficient number, since it is larger than the sum of its proper divisors (82027527071786).

164055054143566 is an equidigital number, since it uses as much as digits as its factorization.

164055054143566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82027527071785.

The product of its (nonzero) digits is 25920000, while the sum is 55.

The spelling of 164055054143566 in words is "one hundred sixty-four trillion, fifty-five billion, fifty-four million, one hundred forty-three thousand, five hundred sixty-six".