7415661456 has 400 divisors, whose sum is σ = 25797277440. Its totient is φ = 2011806720.

The previous prime is 7415661437. The next prime is 7415661503. The reversal of 7415661456 is 6541665147.

7415661456 is a `hidden beast` number, since 7 + 41 + 566 + 1 + 45 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 18679050 + ... + 18679446.

Almost surely, 2^7415661456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7415661456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12898638720).

7415661456 is an abundant number, since it is smaller than the sum of its proper divisors (18381615984).

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

7415661456 is a wasteful number, since it uses less digits than its factorization.

7415661456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 509 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 7415661456 is about 86114.2349208306. The cubic root of 7415661456 is about 1950.0689395745.

The spelling of 7415661456 in words is "seven billion, four hundred fifteen million, six hundred sixty-one thousand, four hundred fifty-six".