996218656454 has 32 divisors (see below), whose sum is σ = 1815486739200. Its totient is φ = 400474994400.

The previous prime is 996218656453. The next prime is 996218656481. The reversal of 996218656454 is 454656812699.

It is a super-2 number, since 2×996218656454² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996218656453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18513644 + ... + 18567375.

It is an arithmetic number, because the mean of its divisors is an integer number (56733960600).

Almost surely, 2^996218656454 is an apocalyptic number.

996218656454 is a deficient number, since it is larger than the sum of its proper divisors (819268082746).

996218656454 is a wasteful number, since it uses less digits than its factorization.

996218656454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37081148.

The product of its digits is 111974400, while the sum is 65.

The spelling of 996218656454 in words is "nine hundred ninety-six billion, two hundred eighteen million, six hundred fifty-six thousand, four hundred fifty-four".