7666657460 has 48 divisors (see below), whose sum is σ = 20072707200. Its totient is φ = 2389607040.

The previous prime is 7666657423. The next prime is 7666657469. The reversal of 7666657460 is 647566667.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7666657469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2487635 + ... + 2490714.

It is an arithmetic number, because the mean of its divisors is an integer number (418181400).

Almost surely, 2^7666657460 is an apocalyptic number.

7666657460 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7666657460 is an abundant number, since it is smaller than the sum of its proper divisors (12406049740).

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

7666657460 is a wasteful number, since it uses less digits than its factorization.

7666657460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4978376 (or 4978374 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 53.

The square root of 7666657460 is about 87559.4510033040. The cubic root of 7666657460 is about 1971.8264439308.

The spelling of 7666657460 in words is "seven billion, six hundred sixty-six million, six hundred fifty-seven thousand, four hundred sixty".