164351216262154 has 32 divisors (see below), whose sum is σ = 255525499112400. Its totient is φ = 79217102960640.

The previous prime is 164351216262139. The next prime is 164351216262199. The reversal of 164351216262154 is 451262612153461.

It can be written as a sum of positive squares in 8 ways, for example, as 160629692996529 + 3721523265625 = 12673977^2 + 1929125^2 .

It is a super-2 number, since 2×164351216262154² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 164351216262098 and 164351216262107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161854384 + ... + 162866644.

Almost surely, 2^{164351216262154} is an apocalyptic number.

164351216262154 is a deficient number, since it is larger than the sum of its proper divisors (91174282850246).

164351216262154 is a wasteful number, since it uses less digits than its factorization.

164351216262154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032538.

The product of its digits is 2073600, while the sum is 49.

The spelling of 164351216262154 in words is "one hundred sixty-four trillion, three hundred fifty-one billion, two hundred sixteen million, two hundred sixty-two thousand, one hundred fifty-four".