540121353215555 has 8 divisors (see below), whose sum is σ = 648147675092544. Its totient is φ = 432095715083200.

The previous prime is 540121353215501. The next prime is 540121353215593. The reversal of 540121353215555 is 555512353121045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 540121353215555 - 2⁶ = 540121353215491 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169196666 + ... + 172359375.

It is an arithmetic number, because the mean of its divisors is an integer number (81018459386568).

Almost surely, 2^{540121353215555} is an apocalyptic number.

540121353215555 is a deficient number, since it is larger than the sum of its proper divisors (108026321876989).

540121353215555 is a wasteful number, since it uses less digits than its factorization.

540121353215555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341872317.

The product of its (nonzero) digits is 2250000, while the sum is 47.

The spelling of 540121353215555 in words is "five hundred forty trillion, one hundred twenty-one billion, three hundred fifty-three million, two hundred fifteen thousand, five hundred fifty-five".