30345155904 has 168 divisors, whose sum is σ = 94524198048. Its totient is φ = 8565365760.

The previous prime is 30345155903. The next prime is 30345155909. The reversal of 30345155904 is 40955154303.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30345155903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 761434 + ... + 800294.

It is an arithmetic number, because the mean of its divisors is an integer number (562644036).

Almost surely, 2^30345155904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30345155904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47262099024).

30345155904 is an abundant number, since it is smaller than the sum of its proper divisors (64179042144).

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

30345155904 is a wasteful number, since it uses less digits than its factorization.

30345155904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38973 (or 38956 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The spelling of 30345155904 in words is "thirty billion, three hundred forty-five million, one hundred fifty-five thousand, nine hundred four".