6455626020 has 96 divisors (see below), whose sum is σ = 20119948800. Its totient is φ = 1718433792.

The previous prime is 6455626007. The next prime is 6455626033. The reversal of 6455626020 is 206265546.

6455626020 is a `hidden beast` number, since 6 + 4 + 5 + 5 + 626 + 0 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (6455626007) and next prime (6455626033).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 301221 + ... + 321939.

It is an arithmetic number, because the mean of its divisors is an integer number (209582800).

Almost surely, 2^6455626020 is an apocalyptic number.

6455626020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6455626020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10059974400).

6455626020 is an abundant number, since it is smaller than the sum of its proper divisors (13664322780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6455626020 is a wasteful number, since it uses less digits than its factorization.

6455626020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21314 (or 21306 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 6455626020 is about 80346.9104570923. The cubic root of 6455626020 is about 1861.9990474109. Note that the first 3 decimals are identical.

The spelling of 6455626020 in words is "six billion, four hundred fifty-five million, six hundred twenty-six thousand, twenty".