154919944900 has 144 divisors (see below), whose sum is σ = 388187376640. Its totient is φ = 52567056000.

The previous prime is 154919944889. The next prime is 154919944939. The reversal of 154919944900 is 9449919451.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29910511 + ... + 29915689.

Almost surely, 2^154919944900 is an apocalyptic number.

154919944900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154919944900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194093688320).

154919944900 is an abundant number, since it is smaller than the sum of its proper divisors (233267431740).

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

154919944900 is a wasteful number, since it uses less digits than its factorization.

154919944900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634 (or 5627 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 55.

The spelling of 154919944900 in words is "one hundred fifty-four billion, nine hundred nineteen million, nine hundred forty-four thousand, nine hundred".