154420446164640 has 192 divisors, whose sum is σ = 490906282648320. Its totient is φ = 40799397150720.

The previous prime is 154420446164627. The next prime is 154420446164641. The reversal of 154420446164640 is 46461644024451.

154420446164640 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (154420446164641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1979278912 + ... + 1979356928.

It is an arithmetic number, because the mean of its divisors is an integer number (2556803555460).

Almost surely, 2^{154420446164640} is an apocalyptic number.

154420446164640 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 154420446164640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245453141324160).

154420446164640 is an abundant number, since it is smaller than the sum of its proper divisors (336485836483680).

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

154420446164640 is a wasteful number, since it uses less digits than its factorization.

154420446164640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115975 (or 115967 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 51.

The spelling of 154420446164640 in words is "one hundred fifty-four trillion, four hundred twenty billion, four hundred forty-six million, one hundred sixty-four thousand, six hundred forty".