498155051601 has 81 divisors (see below), whose sum is σ = 770655832401. Its totient is φ = 310055556096.

The previous prime is 498155051599. The next prime is 498155051621. The reversal of 498155051601 is 106150551894.

The square root of 498155051601 is 705801.

It is a perfect power (a square), and thus also a powerful number.

498155051601 is a `hidden beast` number, since 4 + 9 + 81 + 5 + 50 + 516 + 0 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 876219201 + 497278832400 = 29601^2 + 705180^2 .

It is not a de Polignac number, because 498155051601 - 2¹ = 498155051599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (498155051621) by changing a digit.

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 80 ways as a sum of consecutive naturals, for example, 2581114161 + ... + 2581114353.

Almost surely, 2^498155051601 is an apocalyptic number.

498155051601 is the 705801-st square number.

498155051601 is the 352901-st centered octagonal number.

It is an amenable number.

498155051601 is a deficient number, since it is larger than the sum of its proper divisors (272500780800).

498155051601 is an equidigital number, since it uses as much as digits as its factorization.

498155051601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 45.

The spelling of 498155051601 in words is "four hundred ninety-eight billion, one hundred fifty-five million, fifty-one thousand, six hundred one".