155400067420 has 48 divisors (see below), whose sum is σ = 351493990848. Its totient is φ = 57370199040.

The previous prime is 155400067363. The next prime is 155400067481. The reversal of 155400067420 is 24760004551.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1934292 + ... + 2013028.

It is an arithmetic number, because the mean of its divisors is an integer number (7322791476).

Almost surely, 2^155400067420 is an apocalyptic number.

155400067420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155400067420 is an abundant number, since it is smaller than the sum of its proper divisors (196093923428).

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

155400067420 is a wasteful number, since it uses less digits than its factorization.

155400067420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86350 (or 86348 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 155400067420 in words is "one hundred fifty-five billion, four hundred million, sixty-seven thousand, four hundred twenty".