154133342564661 has 24 divisors (see below), whose sum is σ = 224444472922176. Its totient is φ = 101923388985600.

The previous prime is 154133342564633. The next prime is 154133342564671. The reversal of 154133342564661 is 166465243331451.

154133342564661 is a `hidden beast` number, since 1 + 5 + 4 + 1 + 3 + 33 + 42 + 564 + 6 + 6 + 1 = 666.

154133342564661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 154133342564661 - 2¹⁰ = 154133342563637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 154133342564598 and 154133342564607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154133342564671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83347455 + ... + 85176668.

It is an arithmetic number, because the mean of its divisors is an integer number (9351853038424).

Almost surely, 2^{154133342564661} is an apocalyptic number.

It is an amenable number.

154133342564661 is a deficient number, since it is larger than the sum of its proper divisors (70311130357515).

154133342564661 is a wasteful number, since it uses less digits than its factorization.

154133342564661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168524953 (or 168524950 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 54.

The spelling of 154133342564661 in words is "one hundred fifty-four trillion, one hundred thirty-three billion, three hundred forty-two million, five hundred sixty-four thousand, six hundred sixty-one".