6411215456 has 24 divisors (see below), whose sum is σ = 12718440504. Its totient is φ = 3181135360.

The previous prime is 6411215449. The next prime is 6411215539. The reversal of 6411215456 is 6545121146.

It is a super-2 number, since 2×6411215456² = 82207367246506575872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 760505 + ... + 768888.

It is an arithmetic number, because the mean of its divisors is an integer number (529935021).

Almost surely, 2^6411215456 is an apocalyptic number.

It is an amenable number.

6411215456 is a deficient number, since it is larger than the sum of its proper divisors (6307225048).

6411215456 is a wasteful number, since it uses less digits than its factorization.

6411215456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529534 (or 1529526 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 6411215456 is about 80070.0659172952. The cubic root of 6411215456 is about 1857.7194325306.

The spelling of 6411215456 in words is "six billion, four hundred eleven million, two hundred fifteen thousand, four hundred fifty-six".