1099954453542 has 128 divisors (see below), whose sum is σ = 2623530083328. Its totient is φ = 300968179200.

The previous prime is 1099954453541. The next prime is 1099954453583. The reversal of 1099954453542 is 2453544599901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099954453541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17757048 + ... + 17818884.

It is an arithmetic number, because the mean of its divisors is an integer number (20496328776).

Almost surely, 2^{1099954453542} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1099954453542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1311765041664).

1099954453542 is an abundant number, since it is smaller than the sum of its proper divisors (1523575629786).

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

1099954453542 is a wasteful number, since it uses less digits than its factorization.

1099954453542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62094.

The product of its (nonzero) digits is 34992000, while the sum is 60.

The spelling of 1099954453542 in words is "one trillion, ninety-nine billion, nine hundred fifty-four million, four hundred fifty-three thousand, five hundred forty-two".