996156651688 has 64 divisors (see below), whose sum is σ = 2051739072000. Its totient is φ = 449656346880.

The previous prime is 996156651593. The next prime is 996156651689. The reversal of 996156651688 is 886156651699.

It is a Smith number, since the sum of its digits (70) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (996156651689) 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, 112011370 + ... + 112020262.

It is an arithmetic number, because the mean of its divisors is an integer number (32058423000).

Almost surely, 2^996156651688 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 996156651688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1025869536000).

996156651688 is an abundant number, since it is smaller than the sum of its proper divisors (1055582420312).

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

996156651688 is a wasteful number, since it uses less digits than its factorization.

996156651688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17602 (or 17598 counting only the distinct ones).

The product of its digits is 167961600, while the sum is 70.

The spelling of 996156651688 in words is "nine hundred ninety-six billion, one hundred fifty-six million, six hundred fifty-one thousand, six hundred eighty-eight".