30200655720 has 128 divisors (see below), whose sum is σ = 96781184640. Its totient is φ = 7512637440.

The previous prime is 30200655707. The next prime is 30200655761. The reversal of 30200655720 is 2755600203.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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

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, 165015 + ... + 296025.

It is an arithmetic number, because the mean of its divisors is an integer number (756103005).

Almost surely, 2^30200655720 is an apocalyptic number.

30200655720 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 30200655720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48390592320).

30200655720 is an abundant number, since it is smaller than the sum of its proper divisors (66580528920).

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

30200655720 is a wasteful number, since it uses less digits than its factorization.

30200655720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131155 (or 131151 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The spelling of 30200655720 in words is "thirty billion, two hundred million, six hundred fifty-five thousand, seven hundred twenty".