154974071040 has 144 divisors (see below), whose sum is σ = 501729462528. Its totient is φ = 40760229888.

The previous prime is 154974071029. The next prime is 154974071041. The reversal of 154974071040 is 40170479451.

It is a junction number, because it is equal to n+sod(n) for n = 154974070983 and 154974071001.

It is not an unprimeable number, because it can be changed into a prime (154974071041) 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, 3897 + ... + 556743.

Almost surely, 2^154974071040 is an apocalyptic number.

154974071040 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 154974071040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250864731264).

154974071040 is an abundant number, since it is smaller than the sum of its proper divisors (346755391488).

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

154974071040 is an equidigital number, since it uses as much as digits as its factorization.

154974071040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552944 (or 552930 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 154974071040 in words is "one hundred fifty-four billion, nine hundred seventy-four million, seventy-one thousand, forty".