30555120630 has 64 divisors (see below), whose sum is σ = 74852227008. Its totient is φ = 7979712000.

The previous prime is 30555120623. The next prime is 30555120649. The reversal of 30555120630 is 3602155503.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 868380 + ... + 902880.

It is an arithmetic number, because the mean of its divisors is an integer number (1169566047).

Almost surely, 2^30555120630 is an apocalyptic number.

30555120630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30555120630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37426113504).

30555120630 is an abundant number, since it is smaller than the sum of its proper divisors (44297106378).

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

30555120630 is a wasteful number, since it uses less digits than its factorization.

30555120630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35121.

The product of its (nonzero) digits is 13500, while the sum is 30.

The spelling of 30555120630 in words is "thirty billion, five hundred fifty-five million, one hundred twenty thousand, six hundred thirty".