1099066654980 has 288 divisors, whose sum is σ = 4108453090560. Its totient is φ = 232188456960.

The previous prime is 1099066654979. The next prime is 1099066655009. The reversal of 1099066654980 is 894566609901.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 421672 + ... + 1541408.

It is an arithmetic number, because the mean of its divisors is an integer number (14265462120).

Almost surely, 2^{1099066654980} is an apocalyptic number.

1099066654980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1099066654980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2054226545280).

1099066654980 is an abundant number, since it is smaller than the sum of its proper divisors (3009386435580).

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

1099066654980 is a wasteful number, since it uses less digits than its factorization.

1099066654980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119819 (or 1119814 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 63.

The spelling of 1099066654980 in words is "one trillion, ninety-nine billion, sixty-six million, six hundred fifty-four thousand, nine hundred eighty".