154040155040 has 48 divisors (see below), whose sum is σ = 363966766632. Its totient is φ = 61608121344.

The previous prime is 154040155033. The next prime is 154040155043. The reversal of 154040155040 is 40551040451.

It can be written as a sum of positive squares in 4 ways, for example, as 151069032976 + 2971122064 = 388676^2 + 54508^2 .

It is a junction number, because it is equal to n+sod(n) for n = 154040154994 and 154040155012.

It is not an unprimeable number, because it can be changed into a prime (154040155043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1272842 + ... + 1388598.

Almost surely, 2^154040155040 is an apocalyptic number.

154040155040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154040155040 is an abundant number, since it is smaller than the sum of its proper divisors (209926611592).

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

154040155040 is a wasteful number, since it uses less digits than its factorization.

154040155040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124089 (or 124081 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 154040155040 its reverse (40551040451), we get a palindrome (194591195491).

The spelling of 154040155040 in words is "one hundred fifty-four billion, forty million, one hundred fifty-five thousand, forty".