154353421020 has 48 divisors (see below), whose sum is σ = 432217433088. Its totient is φ = 41158259520.

The previous prime is 154353420967. The next prime is 154353421037. The reversal of 154353421020 is 20124353451.

154353421020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 965385 + ... + 1113855.

It is an arithmetic number, because the mean of its divisors is an integer number (9004529856).

Almost surely, 2^154353421020 is an apocalyptic number.

154353421020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154353421020 is an abundant number, since it is smaller than the sum of its proper divisors (277864012068).

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

154353421020 is a wasteful number, since it uses less digits than its factorization.

154353421020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165810 (or 165808 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 154353421020 its reverse (20124353451), we get a palindrome (174477774471).

The spelling of 154353421020 in words is "one hundred fifty-four billion, three hundred fifty-three million, four hundred twenty-one thousand, twenty".