996722155 has 64 divisors (see below), whose sum is σ = 1523225088. Its totient is φ = 614799360.

The previous prime is 996722149. The next prime is 996722171. The reversal of 996722155 is 551227699.

It is not a de Polignac number, because 996722155 - 2⁵ = 996722123 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 521712 + ... + 523618.

It is an arithmetic number, because the mean of its divisors is an integer number (23800392).

Almost surely, 2^996722155 is an apocalyptic number.

996722155 is a deficient number, since it is larger than the sum of its proper divisors (526502933).

996722155 is a wasteful number, since it uses less digits than its factorization.

996722155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996.

The product of its digits is 340200, while the sum is 46.

The square root of 996722155 is about 31570.9067814024. The cubic root of 996722155 is about 998.9061890137.

The spelling of 996722155 in words is "nine hundred ninety-six million, seven hundred twenty-two thousand, one hundred fifty-five".