420113032505555 has 16 divisors (see below), whose sum is σ = 533647989974880. Its totient is φ = 316954563733248.

The previous prime is 420113032505549. The next prime is 420113032505633. The reversal of 420113032505555 is 555505230311024.

It is a cyclic number.

It is not a de Polignac number, because 420113032505555 - 2⁴ = 420113032505539 is a prime.

It is a super-2 number, since 2×420113032505555² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33689892122 + ... + 33689904591.

It is an arithmetic number, because the mean of its divisors is an integer number (33352999373430).

Almost surely, 2^{420113032505555} is an apocalyptic number.

420113032505555 is a deficient number, since it is larger than the sum of its proper divisors (113534957469325).

420113032505555 is a wasteful number, since it uses less digits than its factorization.

420113032505555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67379796790.

The product of its (nonzero) digits is 450000, while the sum is 41.

Adding to 420113032505555 its reverse (555505230311024), we get a palindrome (975618262816579).

The spelling of 420113032505555 in words is "four hundred twenty trillion, one hundred thirteen billion, thirty-two million, five hundred five thousand, five hundred fifty-five".