2540433451155 has 128 divisors (see below), whose sum is σ = 4368214932480. Its totient is φ = 1256999731200.

The previous prime is 2540433451151. The next prime is 2540433451183. The reversal of 2540433451155 is 5511543340452.

2540433451155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2540433451155 - 2² = 2540433451151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2540433451151) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2115264555 + ... + 2115265755.

It is an arithmetic number, because the mean of its divisors is an integer number (34126679160).

Almost surely, 2^{2540433451155} is an apocalyptic number.

2540433451155 is a deficient number, since it is larger than the sum of its proper divisors (1827781481325).

2540433451155 is a wasteful number, since it uses less digits than its factorization.

2540433451155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941.

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 2540433451155 in words is "two trillion, five hundred forty billion, four hundred thirty-three million, four hundred fifty-one thousand, one hundred fifty-five".