611406450064 has 40 divisors (see below), whose sum is σ = 1187745229440. Its totient is φ = 304891872000.

The previous prime is 611406450047. The next prime is 611406450119. The reversal of 611406450064 is 460054604116.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53857989 + ... + 53869339.

It is an arithmetic number, because the mean of its divisors is an integer number (29693630736).

Almost surely, 2^611406450064 is an apocalyptic number.

It is an amenable number.

611406450064 is a deficient number, since it is larger than the sum of its proper divisors (576338779376).

611406450064 is a wasteful number, since it uses less digits than its factorization.

611406450064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19999 (or 19993 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 611406450064 in words is "six hundred eleven billion, four hundred six million, four hundred fifty thousand, sixty-four".