154533899664 has 405 divisors, whose sum is σ = 481127585731. Its totient is φ = 46292398080.

The previous prime is 154533899621. The next prime is 154533899699. The reversal of 154533899664 is 466998335451.

The square root of 154533899664 is 393108.

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

154533899664 is a `hidden beast` number, since 1 + 5 + 4 + 533 + 8 + 9 + 96 + 6 + 4 = 666.

154533899664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10886835600 + 143647064064 = 104340^2 + 379008^2 .

It is a super-2 number, since 2×154533899664² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 3287955289 + ... + 3287955335.

Almost surely, 2^154533899664 is an apocalyptic number.

154533899664 is the 393108-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154533899664

154533899664 is an abundant number, since it is smaller than the sum of its proper divisors (326593686067).

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

154533899664 is a wasteful number, since it uses less digits than its factorization.

154533899664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 110 counting only the distinct ones).

The product of its digits is 83980800, while the sum is 63.

The spelling of 154533899664 in words is "one hundred fifty-four billion, five hundred thirty-three million, eight hundred ninety-nine thousand, six hundred sixty-four".