6467155020 has 120 divisors (see below), whose sum is σ = 21355580400. Its totient is φ = 1633799808.

The previous prime is 6467155003. The next prime is 6467155043. The reversal of 6467155020 is 205517646.

It is a happy number.

6467155020 is a `hidden beast` number, since 646 + 7 + 1 + 5 + 5 + 0 + 2 + 0 = 666.

It is a super-2 number, since 2×6467155020² = 83648188105422400800, which contains 22 as substring.

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 39 ways as a sum of consecutive naturals, for example, 74275 + ... + 135834.

It is an arithmetic number, because the mean of its divisors is an integer number (177963170).

Almost surely, 2^6467155020 is an apocalyptic number.

6467155020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6467155020 is an abundant number, since it is smaller than the sum of its proper divisors (14888425380).

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

6467155020 is a wasteful number, since it uses less digits than its factorization.

6467155020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210149 (or 210138 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 6467155020 is about 80418.6235893154. The cubic root of 6467155020 is about 1863.1068263947.

The spelling of 6467155020 in words is "six billion, four hundred sixty-seven million, one hundred fifty-five thousand, twenty".