30691616508450 has 96 divisors (see below), whose sum is σ = 85591399924800. Its totient is φ = 8085823436160.

The previous prime is 30691616508433. The next prime is 30691616508451. The reversal of 30691616508450 is 5480561619603.

30691616508450 is a `hidden beast` number, since 3 + 0 + 6 + 91 + 6 + 1 + 6 + 508 + 45 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (30691616508451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136842955 + ... + 137067054.

It is an arithmetic number, because the mean of its divisors is an integer number (891577082550).

Almost surely, 2^{30691616508450} is an apocalyptic number.

30691616508450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30691616508450 is an abundant number, since it is smaller than the sum of its proper divisors (54899783416350).

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

30691616508450 is a wasteful number, since it uses less digits than its factorization.

30691616508450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273910113 (or 273910102 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 30691616508450 in words is "thirty trillion, six hundred ninety-one billion, six hundred sixteen million, five hundred eight thousand, four hundred fifty".