154646561415540 has 96 divisors (see below), whose sum is σ = 448223515729920. Its totient is φ = 39797623324800.

The previous prime is 154646561415529. The next prime is 154646561415547. The reversal of 154646561415540 is 45514165646451.

154646561415540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154646561415547) 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, 115130746 + ... + 116466225.

It is an arithmetic number, because the mean of its divisors is an integer number (4668994955520).

Almost surely, 2^{154646561415540} is an apocalyptic number.

154646561415540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154646561415540 is an abundant number, since it is smaller than the sum of its proper divisors (293576954314380).

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

154646561415540 is a wasteful number, since it uses less digits than its factorization.

154646561415540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231597373 (or 231597371 counting only the distinct ones).

The product of its (nonzero) digits is 34560000, while the sum is 57.

The spelling of 154646561415540 in words is "one hundred fifty-four trillion, six hundred forty-six billion, five hundred sixty-one million, four hundred fifteen thousand, five hundred forty".