1099659346440 has 64 divisors (see below), whose sum is σ = 3299081875200. Its totient is φ = 293233262592.

The previous prime is 1099659346427. The next prime is 1099659346447. The reversal of 1099659346440 is 446439569901.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (1099659346447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4236321 + ... + 4488399.

It is an arithmetic number, because the mean of its divisors is an integer number (51548154300).

Almost surely, 2^{1099659346440} is an apocalyptic number.

1099659346440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1099659346440 is an abundant number, since it is smaller than the sum of its proper divisors (2199422528760).

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

1099659346440 is a wasteful number, since it uses less digits than its factorization.

1099659346440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288446 (or 288442 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 60.

The spelling of 1099659346440 in words is "one trillion, ninety-nine billion, six hundred fifty-nine million, three hundred forty-six thousand, four hundred forty".