996154468849 has 128 divisors (see below), whose sum is σ = 1205591040000. Its totient is φ = 816065445888.

The previous prime is 996154468823. The next prime is 996154468879. The reversal of 996154468849 is 948864451699.

It is a 4-Lehmer number, since φ(996154468849) divides (996154468849-1)⁴.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 996154468849 - 2³¹ = 994006985201 is a prime.

It is a super-2 number, since 2×996154468849² (a number of 25 digits) contains 22 as substring.

It is a deceptive number, since it divides R_996154468848.

It is not an unprimeable number, because it can be changed into a prime (996154468879) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5005801252 + ... + 5005801450.

It is an arithmetic number, because the mean of its divisors is an integer number (9418680000).

It is a Poulet number, since it divides 2^996154468848-1.

Almost surely, 2^996154468849 is an apocalyptic number.

It is an amenable number.

996154468849 is a deficient number, since it is larger than the sum of its proper divisors (209436571151).

996154468849 is a wasteful number, since it uses less digits than its factorization.

996154468849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527.

The product of its digits is 537477120, while the sum is 73.

The spelling of 996154468849 in words is "nine hundred ninety-six billion, one hundred fifty-four million, four hundred sixty-eight thousand, eight hundred forty-nine".