154215201240200 has 24 divisors (see below), whose sum is σ = 358550342883930. Its totient is φ = 61686080496000.

The previous prime is 154215201240167. The next prime is 154215201240241. The reversal of 154215201240200 is 2042102512451.

It can be written as a sum of positive squares in 3 ways, for example, as 67263716490916 + 86951484749284 = 8201446^2 + 9324778^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 385538002901 + ... + 385538003300.

Almost surely, 2^{154215201240200} is an apocalyptic number.

154215201240200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154215201240200 is an abundant number, since it is smaller than the sum of its proper divisors (204335141643730).

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

154215201240200 is a wasteful number, since it uses less digits than its factorization.

154215201240200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771076006217 (or 771076006208 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 154215201240200 its reverse (2042102512451), we get a palindrome (156257303752651).

The spelling of 154215201240200 in words is "one hundred fifty-four trillion, two hundred fifteen billion, two hundred one million, two hundred forty thousand, two hundred".