154557844540 has 48 divisors (see below), whose sum is σ = 354148722144. Its totient is φ = 56191622400.

The previous prime is 154557844501. The next prime is 154557844541. The reversal of 154557844540 is 45448755451.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154557844541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1075750 + ... + 1210930.

It is an arithmetic number, because the mean of its divisors is an integer number (7378098378).

Almost surely, 2^154557844540 is an apocalyptic number.

154557844540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154557844540 is an abundant number, since it is smaller than the sum of its proper divisors (199590877604).

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

154557844540 is a wasteful number, since it uses less digits than its factorization.

154557844540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140398 (or 140396 counting only the distinct ones).

The product of its (nonzero) digits is 8960000, while the sum is 52.

The spelling of 154557844540 in words is "one hundred fifty-four billion, five hundred fifty-seven million, eight hundred forty-four thousand, five hundred forty".