101555400340 has 48 divisors (see below), whose sum is σ = 213642308880. Its totient is φ = 40550630400.

The previous prime is 101555400319. The next prime is 101555400361. The reversal of 101555400340 is 43004555101.

It is an interprime number because it is at equal distance from previous prime (101555400319) and next prime (101555400361).

It can be written as a sum of positive squares in 8 ways, for example, as 41376441744 + 60178958596 = 203412^2 + 245314^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101555400299 and 101555400308.

It is a congruent number.

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, 51471594 + ... + 51473566.

It is an arithmetic number, because the mean of its divisors is an integer number (4450881435).

Almost surely, 2^101555400340 is an apocalyptic number.

101555400340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101555400340 is an abundant number, since it is smaller than the sum of its proper divisors (112086908540).

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

101555400340 is a wasteful number, since it uses less digits than its factorization.

101555400340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5212 (or 5210 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 101555400340 its reverse (43004555101), we get a palindrome (144559955441).

The spelling of 101555400340 in words is "one hundred one billion, five hundred fifty-five million, four hundred thousand, three hundred forty".