994226170491 has 6 divisors (see below), whose sum is σ = 1436104468500. Its totient is φ = 662817446988.

The previous prime is 994226170489. The next prime is 994226170493. The reversal of 994226170491 is 194071622499.

994226170491 is a `hidden beast` number, since 9 + 9 + 4 + 22 + 61 + 70 + 491 = 666.

It is an interprime number because it is at equal distance from previous prime (994226170489) and next prime (994226170493).

It is not a de Polignac number, because 994226170491 - 2¹ = 994226170489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (994226170493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55234787241 + ... + 55234787258.

It is an arithmetic number, because the mean of its divisors is an integer number (239350744750).

Almost surely, 2^994226170491 is an apocalyptic number.

994226170491 is a deficient number, since it is larger than the sum of its proper divisors (441878298009).

994226170491 is a wasteful number, since it uses less digits than its factorization.

994226170491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110469574505 (or 110469574502 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 994226170491 in words is "nine hundred ninety-four billion, two hundred twenty-six million, one hundred seventy thousand, four hundred ninety-one".