163040012243451 has 48 divisors (see below), whose sum is σ = 271735761073920. Its totient is φ = 92269826032320.

The previous prime is 163040012243441. The next prime is 163040012243461. The reversal of 163040012243451 is 154342210040361.

163040012243451 is a `hidden beast` number, since 1 + 6 + 3 + 0 + 40 + 0 + 122 + 43 + 451 = 666.

It is an interprime number because it is at equal distance from previous prime (163040012243441) and next prime (163040012243461).

It is not a de Polignac number, because 163040012243451 - 2¹⁸ = 163040011981307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163040012243441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10110096 + ... + 20695266.

It is an arithmetic number, because the mean of its divisors is an integer number (5661161689040).

Almost surely, 2^{163040012243451} is an apocalyptic number.

163040012243451 is a deficient number, since it is larger than the sum of its proper divisors (108695748830469).

163040012243451 is a wasteful number, since it uses less digits than its factorization.

163040012243451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10587536 (or 10587533 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 163040012243451 in words is "one hundred sixty-three trillion, forty billion, twelve million, two hundred forty-three thousand, four hundred fifty-one".