103405450365 has 128 divisors (see below), whose sum is σ = 218300544000. Its totient is φ = 45438962688.

The previous prime is 103405450361. The next prime is 103405450391. The reversal of 103405450365 is 563054504301.

103405450365 is a `hidden beast` number, since 1 + 0 + 3 + 40 + 54 + 503 + 65 = 666.

It is not a de Polignac number, because 103405450365 - 2² = 103405450361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103405450361) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6267507 + ... + 6283983.

It is an arithmetic number, because the mean of its divisors is an integer number (1705473000).

Almost surely, 2^103405450365 is an apocalyptic number.

103405450365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103405450365 is an abundant number, since it is smaller than the sum of its proper divisors (114895093635).

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

103405450365 is a wasteful number, since it uses less digits than its factorization.

103405450365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16756 (or 16750 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 103405450365 its reverse (563054504301), we get a palindrome (666459954666).

The spelling of 103405450365 in words is "one hundred three billion, four hundred five million, four hundred fifty thousand, three hundred sixty-five".