146264566491 has 96 divisors (see below), whose sum is σ = 226135203840. Its totient is φ = 90976665600.

The previous prime is 146264566439. The next prime is 146264566499. The reversal of 146264566491 is 194665462641.

146264566491 is a `hidden beast` number, since 1 + 4 + 626 + 4 + 5 + 6 + 6 + 4 + 9 + 1 = 666.

It is not a de Polignac number, because 146264566491 - 2⁷ = 146264566363 is a prime.

It is a Smith number, since the sum of its digits (54) 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 (146264566499) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 228181531 + ... + 228182171.

It is an arithmetic number, because the mean of its divisors is an integer number (2355575040).

Almost surely, 2^146264566491 is an apocalyptic number.

146264566491 is a deficient number, since it is larger than the sum of its proper divisors (79870637349).

146264566491 is a wasteful number, since it uses less digits than its factorization.

146264566491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017 (or 1014 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 146264566491 in words is "one hundred forty-six billion, two hundred sixty-four million, five hundred sixty-six thousand, four hundred ninety-one".