30649160640 has 224 divisors, whose sum is σ = 112235650560. Its totient is φ = 6941085696.

The previous prime is 30649160627. The next prime is 30649160657. The reversal of 30649160640 is 4606194603.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 711559 + ... + 753401.

Almost surely, 2^30649160640 is an apocalyptic number.

30649160640 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 30649160640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56117825280).

30649160640 is an abundant number, since it is smaller than the sum of its proper divisors (81586489920).

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

30649160640 is a wasteful number, since it uses less digits than its factorization.

30649160640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41979 (or 41969 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The spelling of 30649160640 in words is "thirty billion, six hundred forty-nine million, one hundred sixty thousand, six hundred forty".