1721016675 has 216 divisors, whose sum is σ = 3959072000. Its totient is φ = 697973760.

The previous prime is 1721016667. The next prime is 1721016679. The reversal of 1721016675 is 5766101271.

It is not a de Polignac number, because 1721016675 - 2³ = 1721016667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1721016679) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 8648226 + ... + 8648424.

Almost surely, 2^1721016675 is an apocalyptic number.

1721016675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1721016675 is an abundant number, since it is smaller than the sum of its proper divisors (2238055325).

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

1721016675 is a wasteful number, since it uses less digits than its factorization.

1721016675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 1721016675 is about 41485.1380014578. The cubic root of 1721016675 is about 1198.3813070928.

The spelling of 1721016675 in words is "one billion, seven hundred twenty-one million, sixteen thousand, six hundred seventy-five".