155545461146420 has 48 divisors (see below), whose sum is σ = 327333129177600. Its totient is φ = 62087206008960.

The previous prime is 155545461146401. The next prime is 155545461146437. The reversal of 155545461146420 is 24641164545551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 758911355 + ... + 759116285.

It is an arithmetic number, because the mean of its divisors is an integer number (6819440191200).

Almost surely, 2^{155545461146420} is an apocalyptic number.

155545461146420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155545461146420 is an abundant number, since it is smaller than the sum of its proper divisors (171787668031180).

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

155545461146420 is a wasteful number, since it uses less digits than its factorization.

155545461146420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284648 (or 284646 counting only the distinct ones).

The product of its (nonzero) digits is 11520000, while the sum is 53.

The spelling of 155545461146420 in words is "one hundred fifty-five trillion, five hundred forty-five billion, four hundred sixty-one million, one hundred forty-six thousand, four hundred twenty".