6690630375 has 160 divisors (see below), whose sum is σ = 14657138496. Its totient is φ = 2993760000.

The previous prime is 6690630371. The next prime is 6690630389. The reversal of 6690630375 is 5730360966.

6690630375 is a `hidden beast` number, since 6 + 6 + 9 + 0 + 630 + 3 + 7 + 5 = 666.

It is not a de Polignac number, because 6690630375 - 2² = 6690630371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6690630375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6690630371) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1445565 + ... + 1450185.

Almost surely, 2^6690630375 is an apocalyptic number.

6690630375 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6690630375 is an abundant number, since it is smaller than the sum of its proper divisors (7966508121).

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

6690630375 is a wasteful number, since it uses less digits than its factorization.

6690630375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4672 (or 4653 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 45.

The square root of 6690630375 is about 81796.2736009410. The cubic root of 6690630375 is about 1884.3244324442.

The spelling of 6690630375 in words is "six billion, six hundred ninety million, six hundred thirty thousand, three hundred seventy-five".