128293248466 has 32 divisors (see below), whose sum is σ = 200621380608. Its totient is φ = 61461765120.

The previous prime is 128293248449. The next prime is 128293248527. The reversal of 128293248466 is 664842392821.

It is a super-2 number, since 2×128293248466² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6835491 + ... + 6854233.

It is an arithmetic number, because the mean of its divisors is an integer number (6269418144).

Almost surely, 2^128293248466 is an apocalyptic number.

128293248466 is a deficient number, since it is larger than the sum of its proper divisors (72328132142).

128293248466 is a wasteful number, since it uses less digits than its factorization.

128293248466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19866.

The product of its digits is 7962624, while the sum is 55.

The spelling of 128293248466 in words is "one hundred twenty-eight billion, two hundred ninety-three million, two hundred forty-eight thousand, four hundred sixty-six".