6420701455 has 16 divisors (see below), whose sum is σ = 8936962560. Its totient is φ = 4337052192.

The previous prime is 6420701429. The next prime is 6420701479. The reversal of 6420701455 is 5541070246.

It is a cyclic number.

It is not a de Polignac number, because 6420701455 - 2⁷ = 6420701327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6420701455.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1366675 + ... + 1371364.

It is an arithmetic number, because the mean of its divisors is an integer number (558560160).

Almost surely, 2^6420701455 is an apocalyptic number.

6420701455 is a deficient number, since it is larger than the sum of its proper divisors (2516261105).

6420701455 is a wasteful number, since it uses less digits than its factorization.

6420701455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738118.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 6420701455 is about 80129.2796360981. The cubic root of 6420701455 is about 1858.6352048278.

It can be divided in two parts, 6420701 and 455, that added together give a square (6421156 = 2534²).

The spelling of 6420701455 in words is "six billion, four hundred twenty million, seven hundred one thousand, four hundred fifty-five".