415435661643 has 4 divisors (see below), whose sum is σ = 553914215528. Its totient is φ = 276957107760.

The previous prime is 415435661617. The next prime is 415435661653. The reversal of 415435661643 is 346166534514.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 415435661643 - 2¹² = 415435657547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 415435661592 and 415435661601.

It is not an unprimeable number, because it can be changed into a prime (415435661653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69239276938 + ... + 69239276943.

It is an arithmetic number, because the mean of its divisors is an integer number (138478553882).

Almost surely, 2^415435661643 is an apocalyptic number.

415435661643 is a deficient number, since it is larger than the sum of its proper divisors (138478553885).

415435661643 is a wasteful number, since it uses less digits than its factorization.

415435661643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138478553884.

The product of its digits is 3110400, while the sum is 48.

The spelling of 415435661643 in words is "four hundred fifteen billion, four hundred thirty-five million, six hundred sixty-one thousand, six hundred forty-three".