30198621516 has 48 divisors (see below), whose sum is σ = 80538178560. Its totient is φ = 8627264640.

The previous prime is 30198621491. The next prime is 30198621529. The reversal of 30198621516 is 61512689103.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 15 ways as a sum of consecutive naturals, for example, 1461336 + ... + 1481856.

It is an arithmetic number, because the mean of its divisors is an integer number (1677878720).

Almost surely, 2^30198621516 is an apocalyptic number.

It is an amenable number.

30198621516 is an abundant number, since it is smaller than the sum of its proper divisors (50339557044).

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

30198621516 is a wasteful number, since it uses less digits than its factorization.

30198621516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38054 (or 38052 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 30198621516 in words is "thirty billion, one hundred ninety-eight million, six hundred twenty-one thousand, five hundred sixteen".