100545520420 has 48 divisors (see below), whose sum is σ = 215244692208. Its totient is φ = 39441346560.

The previous prime is 100545520399. The next prime is 100545520457. The reversal of 100545520420 is 24025545001.

It can be written as a sum of positive squares in 8 ways, for example, as 39987201024 + 60558319396 = 199968^2 + 246086^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288864 + ... + 533416.

It is an arithmetic number, because the mean of its divisors is an integer number (4484264421).

Almost surely, 2^100545520420 is an apocalyptic number.

100545520420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100545520420 is an abundant number, since it is smaller than the sum of its proper divisors (114699171788).

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

100545520420 is a wasteful number, since it uses less digits than its factorization.

100545520420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244960 (or 244958 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The spelling of 100545520420 in words is "one hundred billion, five hundred forty-five million, five hundred twenty thousand, four hundred twenty".