823666622350 has 96 divisors (see below), whose sum is σ = 1820080069920. Its totient is φ = 273368832000.

The previous prime is 823666622323. The next prime is 823666622377. The reversal of 823666622350 is 53226666328.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (823666622323) and next prime (823666622377).

It is a junction number, because it is equal to n+sod(n) for n = 823666622294 and 823666622303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10831 + ... + 1283530.

It is an arithmetic number, because the mean of its divisors is an integer number (18959167395).

Almost surely, 2^823666622350 is an apocalyptic number.

823666622350 is an abundant number, since it is smaller than the sum of its proper divisors (996413447570).

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

823666622350 is a wasteful number, since it uses less digits than its factorization.

823666622350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294486 (or 1294481 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 49.

The spelling of 823666622350 in words is "eight hundred twenty-three billion, six hundred sixty-six million, six hundred twenty-two thousand, three hundred fifty".