164412451165554 has 24 divisors (see below), whose sum is σ = 356227641673020. Its totient is φ = 54804048211968.

The previous prime is 164412451165537. The next prime is 164412451165561. The reversal of 164412451165554 is 455561154214461.

164412451165554 is a `hidden beast` number, since 1 + 6 + 4 + 4 + 1 + 24 + 5 + 1 + 1 + 65 + 554 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 102946490525025 + 61465960640529 = 10146255^2 + 7840023^2 .

It is a super-3 number, since 3×164412451165554³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 164412451165554.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1742002 + ... + 18217010.

Almost surely, 2^{164412451165554} is an apocalyptic number.

164412451165554 is an abundant number, since it is smaller than the sum of its proper divisors (191815190507466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164412451165554 is a wasteful number, since it uses less digits than its factorization.

164412451165554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17029434 (or 17029431 counting only the distinct ones).

The product of its digits is 11520000, while the sum is 54.

The spelling of 164412451165554 in words is "one hundred sixty-four trillion, four hundred twelve billion, four hundred fifty-one million, one hundred sixty-five thousand, five hundred fifty-four".