420116541655 has 32 divisors (see below), whose sum is σ = 525038911488. Its totient is φ = 322359004800.

The previous prime is 420116541643. The next prime is 420116541697. The reversal of 420116541655 is 556145611024.

It is a de Polignac number, because none of the positive numbers 2^k-420116541655 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20087934 + ... + 20108836.

It is an arithmetic number, because the mean of its divisors is an integer number (16407465984).

Almost surely, 2^420116541655 is an apocalyptic number.

420116541655 is a deficient number, since it is larger than the sum of its proper divisors (104922369833).

420116541655 is a wasteful number, since it uses less digits than its factorization.

420116541655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22087.

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 420116541655 in words is "four hundred twenty billion, one hundred sixteen million, five hundred forty-one thousand, six hundred fifty-five".