8357111205420 has 96 divisors (see below), whose sum is σ = 25232253742080. Its totient is φ = 2059775792640.

The previous prime is 8357111205419. The next prime is 8357111205463. The reversal of 8357111205420 is 245021117538.

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, 89353252 + ... + 89446731.

It is an arithmetic number, because the mean of its divisors is an integer number (262835976480).

Almost surely, 2^{8357111205420} is an apocalyptic number.

It is an amenable number.

8357111205420 is an abundant number, since it is smaller than the sum of its proper divisors (16875142536660).

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

8357111205420 is a wasteful number, since it uses less digits than its factorization.

8357111205420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178800055 (or 178800053 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The spelling of 8357111205420 in words is "eight trillion, three hundred fifty-seven billion, one hundred eleven million, two hundred five thousand, four hundred twenty".