16663132407 has 8 divisors (see below), whose sum is σ = 22594078080. Its totient is φ = 10920470840.

The previous prime is 16663132397. The next prime is 16663132439. The reversal of 16663132407 is 70423136661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16663132407 - 2⁷ = 16663132279 is a prime.

It is a super-2 number, since 2×16663132407² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16663134407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47070819 + ... + 47071172.

It is an arithmetic number, because the mean of its divisors is an integer number (2824259760).

Almost surely, 2^16663132407 is an apocalyptic number.

16663132407 is a deficient number, since it is larger than the sum of its proper divisors (5930945673).

16663132407 is an equidigital number, since it uses as much as digits as its factorization.

16663132407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94142053.

The product of its (nonzero) digits is 108864, while the sum is 39.

The spelling of 16663132407 in words is "sixteen billion, six hundred sixty-three million, one hundred thirty-two thousand, four hundred seven".