6953478660 has 72 divisors (see below), whose sum is σ = 21099053976. Its totient is φ = 1853660160.

The previous prime is 6953478607. The next prime is 6953478671. The reversal of 6953478660 is 668743596.

6953478660 is a `hidden beast` number, since 69 + 53 + 478 + 6 + 60 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 93663684 + 6859814976 = 9678^2 + 82824^2 .

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6953478597 and 6953478606.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 990282 + ... + 997278.

Almost surely, 2^6953478660 is an apocalyptic number.

6953478660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6953478660 is an abundant number, since it is smaller than the sum of its proper divisors (14145575316).

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

6953478660 is a wasteful number, since it uses less digits than its factorization.

6953478660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12533 (or 12528 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The square root of 6953478660 is about 83387.5210088416. The cubic root of 6953478660 is about 1908.6840400343.

The spelling of 6953478660 in words is "six billion, nine hundred fifty-three million, four hundred seventy-eight thousand, six hundred sixty".