545420620635 has 128 divisors (see below), whose sum is σ = 989679928320. Its totient is φ = 256291706880.

The previous prime is 545420620579. The next prime is 545420620637. The reversal of 545420620635 is 536026024545.

It is a de Polignac number, because none of the positive numbers 2^k-545420620635 is a prime.

It is not an unprimeable number, because it can be changed into a prime (545420620637) 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, 209052211 + ... + 209054819.

It is an arithmetic number, because the mean of its divisors is an integer number (7731874440).

Almost surely, 2^545420620635 is an apocalyptic number.

545420620635 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

545420620635 is a deficient number, since it is larger than the sum of its proper divisors (444259307685).

545420620635 is a wasteful number, since it uses less digits than its factorization.

545420620635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970 (or 2948 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 42.

The spelling of 545420620635 in words is "five hundred forty-five billion, four hundred twenty million, six hundred twenty thousand, six hundred thirty-five".