154742330020 has 24 divisors (see below), whose sum is σ = 324966306168. Its totient is φ = 61895520000.

The previous prime is 154742330003. The next prime is 154742330111. The reversal of 154742330020 is 20033247451.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7512035584 + 147230294436 = 86672^2 + 383706^2 .

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, 1574320 + ... + 1669720.

It is an arithmetic number, because the mean of its divisors is an integer number (13540262757).

Almost surely, 2^154742330020 is an apocalyptic number.

154742330020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154742330020 is an abundant number, since it is smaller than the sum of its proper divisors (170223976148).

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

154742330020 is a wasteful number, since it uses less digits than its factorization.

154742330020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176511 (or 176509 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

Adding to 154742330020 its reverse (20033247451), we get a palindrome (174775577471).

The spelling of 154742330020 in words is "one hundred fifty-four billion, seven hundred forty-two million, three hundred thirty thousand, twenty".