101555051240 has 16 divisors (see below), whose sum is σ = 228498865380. Its totient is φ = 40622020480.

The previous prime is 101555051233. The next prime is 101555051261. The reversal of 101555051240 is 42150555101.

It can be written as a sum of positive squares in 2 ways, for example, as 101514880996 + 40170244 = 318614^2 + 6338^2 .

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 3 ways as a sum of consecutive naturals, for example, 1269438101 + ... + 1269438180.

Almost surely, 2^101555051240 is an apocalyptic number.

101555051240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101555051240 is an abundant number, since it is smaller than the sum of its proper divisors (126943814140).

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

101555051240 is a wasteful number, since it uses less digits than its factorization.

101555051240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538876292 (or 2538876288 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 29.

The spelling of 101555051240 in words is "one hundred one billion, five hundred fifty-five million, fifty-one thousand, two hundred forty".