154540132511420 has 24 divisors (see below), whose sum is σ = 324542026775904. Its totient is φ = 61814577099456.

The previous prime is 154540132511351. The next prime is 154540132511437. The reversal of 154540132511420 is 24115231045451.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91385264 + ... + 93060983.

It is an arithmetic number, because the mean of its divisors is an integer number (13522584448996).

Almost surely, 2^{154540132511420} is an apocalyptic number.

154540132511420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154540132511420 is an abundant number, since it is smaller than the sum of its proper divisors (170001894264484).

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

154540132511420 is a wasteful number, since it uses less digits than its factorization.

154540132511420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184488149 (or 184488147 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 38.

Adding to 154540132511420 its reverse (24115231045451), we get a palindrome (178655363556871).

The spelling of 154540132511420 in words is "one hundred fifty-four trillion, five hundred forty billion, one hundred thirty-two million, five hundred eleven thousand, four hundred twenty".