30196665720 has 192 divisors, whose sum is σ = 108146918880. Its totient is φ = 7260115968.

The previous prime is 30196665713. The next prime is 30196665749. The reversal of 30196665720 is 2756669103.

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

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 126214 + ... + 276266.

Almost surely, 2^30196665720 is an apocalyptic number.

30196665720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30196665720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54073459440).

30196665720 is an abundant number, since it is smaller than the sum of its proper divisors (77950253160).

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

30196665720 is a wasteful number, since it uses less digits than its factorization.

30196665720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150126 (or 150119 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 30196665720 in words is "thirty billion, one hundred ninety-six million, six hundred sixty-five thousand, seven hundred twenty".